Blade Sharpness Measurement Data and Index

[helicopter]

My Blade Sharpness Thread is growing, and I want to keep it from getting too cluttered. With that in mind, I am creating this thread to make the raw measurement data available and house the current index.

 

[helicopter]

Blade Sharpness Test Index
Blade	Test
7AM Plus Hi Platinum	5
Assured For Men (AFM) blade from Dollar Tree	2
Astra SP Green India	19
Astra SS Blue Russia	41
Bic Chrome Platinum	11
Cloud Super Stainless Red	32
Daylogic Rite Aid	50
Derby Extra Stainless Orange	52
Derby Extra Super Stainless Green	31
Dorco Prime Platinum STP300	49
Feather New Hi-Stainless Yellow Japan	8
Flydear SP	3
Flying Eagle Gillette Carbon Steel	33
Gillette 7 O'Clock Permasharp Stainless India	4
Gillette 7 O'Clock Super Platinum India Black	38
Gillette Blue	51
Gillette Minora Stainless Russia	25
Gillette Permasharp Stainless Russia	7
Gillette Platinum Russia	17
Gillette Silver Blue Stainless Russia	16
Gillette Super Nacet	47
Gillette Wilkinson Sword India saloon	18
Gutche	29
Jifuli Platinum Edge Stainless GF-4395 Baolai	30
Kai	36
King C Gillette China	24
Leaf Single Edge Blade	1
Lord Platinum Super Stainless	34
Matgicol Super Platinum Swedish Stainless	23
Merkur	44
Nacet Stainless Russia A	10
Nacet Stainless Russia B	20
Personna Comfort Coated Blue USA blade by AccuTec	12
Personna Energizer USA	27
Personna Red Edgewell Germany	54
Polsilver ES	48
RK Stainless Henson	40
Schick	45
Shark Platinum	15
Shark Super Chrome Super Stainless	13
Shark Super Stainless	14
Shavely DG	46
Silver Star	42
Suneko My Way Amorphous Diamond Super Stainless New Platinum	22
Tiger Platinum Grey	35
Treet 7 Days Platinum	6
Treet Dura Sharp	26
Treet Platinum	37
Van Der Hagen Basics Super Stainless China	28
Vikings Mild	53
Voskhod Teflon Russia	9
Weishi	43
Wilkinson Sword Germany	21
Wizamet Super Iridium Extra Stainless	39
Gillette Rubie	55
Personna Red Ever-Ready Israel	56
Vikings Hot Cayenne Platinum Swedish Sandvik Vuillon PRC	57
Gillette Platinum China	58

 

[helicopter]

Date	7/28/24	7/28/24	7/28/24	7/28/24	7/28/24
Blade	Gillette Platinum			China	November 1, 2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	15	19	22	26	22
Median F (g)	90	95	99.5	110.5	102.5
Mean F (g) Btm	88	86	95	90	97
Mean F (g) Top	101	116	118	126	122
Mean F (g)	95	101	107	108	110
F (g) 1	86	83	92	77	91
F (g) 2	110	73	77	79	83
F (g) 3	79	86	75	121	94
F (g) 4	80	94	87	91	89
F (g) 5	81	92	121	91	103
F (g) 6	83	79	95	93	89
F (g) 7	81	92	96	68	101
F (g) 8	78	86	90	112	132
F (g) 9	107	76	92	93	121
F (g) 10	97	87	102	97	91
F (g) 11	83	87	89	93	96
F (g) 12	81	88	113	116	90
F (g) 13	117	83	112	83	82
F (g) 14	82	99	91	68	99
F (g) 15	79	88	87	74	97
F (g) 16	97	140	105	143	123
F (g) 17	88	114	107	121	140
F (g) 18	118	103	97	115	153
F (g) 19	88	126	110	160	114
F (g) 20	83	117	135	173	104
F (g) 21	88	96	89	119	118
F (g) 22	99	115	112	127	91
F (g) 23	95	82	167	111	139
F (g) 24	92	120	94	114	140
F (g) 25	139	126	148	110	135
F (g) 26	114	114	133	102	158
F (g) 27	96	123	90	143	112
F (g) 28	101	120	140	110	102
F (g) 29	100	135	129	129	85
F (g) 30	115	110	121	115	114

 

[helicopter]

Date	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24
Blade	Personna Platinum	Platinum Chrome	59.a	Germany
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	13	26	61	61	60
Median F (g)	78	71	80.5	80	93
Mean F (g) Btm	76	69	75	76	79
Mean F (g) Top	83	101	137	140	159
Mean F (g)	80	85	106	108	119
F (g) 1	57	68	56	87	72
F (g) 2	96	56	86	60	75
F (g) 3	69	68	62	81	77
F (g) 4	81	107	76	84	85
F (g) 5	67	64	90	78	93
F (g) 6	76	59	91	69	61
F (g) 7	70	74	79	69	73
F (g) 8	69	66	77	77	78
F (g) 9	61	71	67	77	71
F (g) 10	82	66	76	97	83
F (g) 11	102	71	79	56	96
F (g) 12	63	75	72	81	73
F (g) 13	95	60	66	69	80
F (g) 14	66	57	70	79	78
F (g) 15	84	68	74	69	97
F (g) 16	77	99	142	76	82
F (g) 17	73	107	135	137	90
F (g) 18	91	70	68	72	114
F (g) 19	81	103	245	60	131
F (g) 20	74	96	96	175	158
F (g) 21	97	119	250	179	98
F (g) 22	77	66	102	250	124
F (g) 23	85	121	250	75	224
F (g) 24	69	124	56	81	236
F (g) 25	71	120	82	250	195
F (g) 26	94	62	84	68	208
F (g) 27	88	58	120	108	129
F (g) 28	102	127	68	106	250
F (g) 29	93	142	114	250	250
F (g) 30	79	107	250	212	92

Date	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24
Blade	Personna Platinum	Platinum Chrome	59.b	Germany		59.c
Shaves	0	P3	P6	P9	P12	1
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper	Face
Measurements	30	30	30	30	30	30
Std. Dev.	11	19	46	37	65	13
Median F (g)	74.5	71.5	77	84	91	72
Mean F (g) Btm	74	77	112	108	149	77
Mean F (g) Top	79	81	82	91	85	67
Mean F (g)	76	79	97	99	117	72
F (g) 1	82	63	70	144	250	83
F (g) 2	76	67	250	119	250	83
F (g) 3	66	68	62	66	110	76
F (g) 4	72	109	90	58	153	72
F (g) 5	73	55	123	127	82	79
F (g) 6	72	107	71	74	119	81
F (g) 7	81	65	75	106	189	80
F (g) 8	70	83	134	87	250	77
F (g) 9	71	68	157	151	250	80
F (g) 10	72	65	78	101	64	81
F (g) 11	80	67	56	77	97	69
F (g) 12	74	110	66	196	38	72
F (g) 13	102	68	216	73	179	74
F (g) 14	55	96	76	131	56	73
F (g) 15	60	63	157	110	150	72
F (g) 16	74	72	101	65	65	63
F (g) 17	84	81	66	89	62	59
F (g) 18	78	77	102	76	165	91
F (g) 19	74	77	67	72	83	51
F (g) 20	74	72	70	81	64	51
F (g) 21	75	106	65	134	71	57
F (g) 22	63	66	124	74	67	60
F (g) 23	106	118	74	60	68	62
F (g) 24	94	73	94	115	117	59
F (g) 25	85	70	70	142	84	62
F (g) 26	76	123	97	173	69	59
F (g) 27	80	69	80	58	102	60
F (g) 28	76	71	73	79	76	100
F (g) 29	82	73	78	67	73	100
F (g) 30	63	70	69	73	105	67

 

[helicopter]

Blade Sharpness Test Index
Blade	Test
7AM Plus Hi Platinum	5
Assured For Men (AFM) blade from Dollar Tree	2
Astra SP Green India	19
Astra SS Blue Russia	41
Bic Chrome Platinum	11
Cloud Super Stainless Red	32
Daylogic Rite Aid	50
Derby Extra Stainless Orange	52
Derby Extra Super Stainless Green	31
Dorco Prime Platinum STP300	49
Feather New Hi-Stainless Yellow Japan	8
Flydear SP	3
Flying Eagle Gillette Carbon Steel	33
Gillette 7 O'Clock Permasharp Stainless India	4
Gillette 7 O'Clock Super Platinum India Black	38
Gillette Blue	51
Gillette Minora Stainless Russia	25
Gillette Permasharp Stainless Russia	7
Gillette Platinum China	58
Gillette Platinum Russia	17
Gillette Rubie	55
Gillette Silver Blue Stainless Russia	16
Gillette Super Nacet	47
Gillette Wilkinson Sword India saloon	18
Gutche	29
Jifuli Platinum Edge Stainless GF-4395 Baolai	30
Kai	36
King C Gillette China	24
Leaf Single Edge Blade	1
Lord Platinum Super Stainless	34
Matgicol Super Platinum Swedish Stainless	23
Merkur	44
Nacet Stainless Russia A	10
Nacet Stainless Russia B	20
Personna Comfort Coated Blue USA blade by AccuTec	12
Personna Energizer USA	27
Personna Platinum Blue White de	59
Personna Red Edgewell Germany	54
Personna Red Ever-Ready Israel	56
Polsilver ES	48
RK Stainless Henson	40
Schick	45
Shark Platinum	15
Shark Super Chrome Super Stainless	13
Shark Super Stainless	14
Shavely DG	46
Silver Star	42
Suneko My Way Amorphous Diamond Super Stainless New Platinum	22
Tiger Platinum Grey	35
Treet 7 Days Platinum	6
Treet Dura Sharp	26
Treet Platinum	37
Van Der Hagen Basics Super Stainless China	28
Vikings Hot Cayenne Platinum Swedish Sandvik Vuillon PRC	57
Vikings Mild	53
Voskhod Teflon Russia	9
Weishi	43
Wilkinson Sword Germany	21
Wizamet Super Iridium Extra Stainless	39

 

[helicopter]

Date	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24
Blade	Personna Platinum	Platinum Chrome SSS	ASRC Ever-Ready		May 15, 2019	60.6	60.6	60.6
Shaves	0	P3	P6	P9	P12	0	P3	P6
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper	New	Paper	Paper
Measurements	30	30	30	30	30	20	20	20
Std. Dev.	14	13	16	22	26	10	11	16
Median F (g)	86.5	76	76	87	96	82.5	77	77
Mean F (g) Btm	89	80	82	85	93	84	76	77
Mean F (g) Top	86	79	84	98	113	78	80	88
Mean F (g)	87	80	83	91	103	81	78	82
F (g) 1	93	76	74	82	112	99	82	85
F (g) 2	90	89	118	93	161	84	66	65
F (g) 3	82	85	83	90	80	78	71	91
F (g) 4	92	93	73	121	81	84	87	71
F (g) 5	86	77	76	71	80	73	75	93
F (g) 6	73	84	74	83	118	89	67	84
F (g) 7	78	76	76	75	85	89	69	68
F (g) 8	90	75	68	76	94	83	82	66
F (g) 9	77	67	82	63	69	82	83	74
F (g) 10	87	84	130	102	91	78	81	71
F (g) 11	94	76	76	76	102
F (g) 12	107	78	73	103	74
F (g) 13	98	76	81	92	78
F (g) 14	85	80	74	75	79
F (g) 15	96	80	76	73	95
F (g) 16	80	68	74	108	125	84	100	78
F (g) 17	88	79	71	101	117	68	82	76
F (g) 18	121	112	99	105	107	75	63	108
F (g) 19	75	73	90	84	110	76	74	77
F (g) 20	126	110	69	131	116	89	82	71
F (g) 21	76	69	89	45	138	79	74	71
F (g) 22	72	115	96	111	97	86	69	77
F (g) 23	74	83	115	70	101	65	67	83
F (g) 24	71	65	66	104	177	96	79	117
F (g) 25	95	74	62	78	82	57	105	117
F (g) 26	89	71	84	76	137
F (g) 27	66	65	77	121	131
F (g) 28	73	73	93	134	95
F (g) 29	103	61	97	72	88
F (g) 30	81	71	75	124	81

 

[helicopter]

Date	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24
Blade	Shaving Revolution	Platinum Series	Japanese Stainless	Chine	~2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	24	24	24	24	24
Std. Dev.	15	13	24	12	18
Median F (g)	88.5	77	84.5	92.5	87.5
Mean F (g) Btm	94	80	86	93	88
Mean F (g) Top	82	82	90	89	96
Mean F (g)	88	81	88	91	92
F (g) 1	114	73	93	105	68
F (g) 2	98	85	98	92	88
F (g) 3	93	67	72	81	122
F (g) 4	86	71	79	89	74
F (g) 5	111	75	85	99	78
F (g) 6	101	74	85	107	67
F (g) 7	89	86	77	111	93
F (g) 8	92	97	79	75	105
F (g) 9	95	83	82	78	103
F (g) 10	81	73	102	105	83
F (g) 11	98	91	107	72	80
F (g) 12	70	79	77	104	95
F (g) 13
F (g) 14
F (g) 15
F (g) 16	72	122	186	85	129
F (g) 17	67	79	109	93	76
F (g) 18	95	71	89	91	79
F (g) 19	72	72	70	66	83
F (g) 20	65	104	88	96	113
F (g) 21	86	73	71	93	103
F (g) 22	81	73	85	81	72
F (g) 23	94	80	65	76	92
F (g) 24	69	97	84	98	121
F (g) 25	88	63	70	105	87
F (g) 26	76	80	74	95	117
F (g) 27	114	74	85	86	76
F (g) 28
F (g) 29
F (g) 30

 

[helicopter]

Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	24	24	24	20	20
Std. Dev.	9	7	9	8	8
Median F (g)	86	83.5	85	88.5	86.5
Mean F (g) Btm	91	86	89	92	91
Mean F (g) Top	80	82	80	83	84
Mean F (g)	86	84	84	87	88
F (g) 1	96	86	97	98	99
F (g) 2	90	79	81	91	87
F (g) 3	98	82	91	103	95
F (g) 4	76	90	76	90	85
F (g) 5	97	90	99	90	96
F (g) 6	94	76	86	75	91
F (g) 7	103	77	97	103	91
F (g) 8	97	78	91	85	83
F (g) 9	92	86	82	87	90
F (g) 10	81	97	80	93	94
F (g) 11	87	101	95
F (g) 12	86	86	87
F (g) 13
F (g) 14
F (g) 15
F (g) 16	72	91	84	80	98
F (g) 17	78	76	82	77	86
F (g) 18	86	85	86	90	81
F (g) 19	82	80	79	79	77
F (g) 20	86	88	83	90	98
F (g) 21	89	78	68	80	81
F (g) 22	76	72	87	87	70
F (g) 23	81	89	66	90	84
F (g) 24	80	86	67	82	82
F (g) 25	71	75	88	77	85
F (g) 26	75	79	84
F (g) 27	87	81	86
F (g) 28
F (g) 29
F (g) 30

 

[helicopter]

Date	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24
Blade	Dorco ST301	New Platinum	Stainless	Vietnam	~2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	7	9	11	10	14
Median F (g)	66	64.5	67.5	74	77
Mean F (g) Btm	65	70	75	80	84
Mean F (g) Top	66	64	66	70	78
Mean F (g)	65	67	71	75	81
F (g) 1	60	88	76	70	95
F (g) 2	65	68	64	76	69
F (g) 3	62	70	67	70	120
F (g) 4	66	66	98	95	84
F (g) 5	71	85	67	62	92
F (g) 6	66	58	76	74	64
F (g) 7	71	60	76	82	83
F (g) 8	67	61	78	69	74
F (g) 9	66	57	68	69	88
F (g) 10	60	94	80	81	75
F (g) 11	58	67	60	96	84
F (g) 12	64	67	90	97	64
F (g) 13	64	66	92	80	93
F (g) 14	66	82	81	93	79
F (g) 15	66	64	54	87	102
F (g) 16	63	62	70	75	69
F (g) 17	66	61	59	70	70
F (g) 18	60	70	76	67	75
F (g) 19	72	64	67	73	70
F (g) 20	85	70	62	70	79
F (g) 21	66	64	62	60	69
F (g) 22	76	59	71	77	73
F (g) 23	66	73	66	75	72
F (g) 24	63	58	71	61	81
F (g) 25	75	65	58	64	72
F (g) 26	52	63	60	60	67
F (g) 27	66	63	63	75	86
F (g) 28	62	74	81	77	117
F (g) 29	51	60	61	74	69
F (g) 30	63	59	67	73	95

Yeah buddy!

 

[helicopter]

Blade Sharpness Test Index
Blade	Test
7AM Plus Hi Platinum	5
Assured For Men (AFM) blade from Dollar Tree	2
Astra SP Green India	19
Astra SS Blue Russia	41
Bic Chrome Platinum	11
Cloud Super Stainless Red	32
Daylogic Rite Aid	50
Derby Extra Stainless Orange	52
Derby Extra Super Stainless Green	31
Dorco Prime Platinum STP300	49
Dorco Stainless ST301	63
Feather New Hi-Stainless Yellow Japan	8
Flydear SP	3
Flying Eagle Gillette Carbon Steel	33
Gillette 7 O'Clock Permasharp Stainless India	4
Gillette 7 O'Clock Super Platinum India Black	38
Gillette Blue	51
Gillette Minora Stainless Russia	25
Gillette Permasharp Stainless Russia	7
Gillette Platinum China	58
Gillette Platinum Russia	17
Gillette Rubie	55
Gillette Silver Blue Stainless Russia	16
Gillette Super Nacet	47
Gillette Wilkinson Sword India saloon	18
Gutche	29
Jifuli Platinum Edge Stainless GF-4395 Baolai	30
Kai	36
King C Gillette China	24
Leaf Single Edge Blade	1
Lord Platinum Super Stainless	34
Matgicol Super Platinum Swedish Stainless	23
Merkur	44
Nacet Stainless Russia A	10
Nacet Stainless Russia B	20
PearlMax Super Platinum	62
Personna Comfort Coated Blue USA blade by AccuTec	12
Personna Energizer USA	27
Personna Platinum Blue White de	59
Personna Platinum Chrome Super Blue White	60
Personna Red Edgewell Germany	54
Personna Red Ever-Ready Israel	56
Polsilver ES	48
RK Stainless Henson	40
Schick	45
Shark Platinum	15
Shark Super Chrome Super Stainless	13
Shark Super Stainless	14
Shavely DG	46
Shaving Revolution Platinum Japanese cn	61
Silver Star	42
Suneko My Way Amorphous Diamond Super Stainless New Platinum	22
Tiger Platinum Grey	35
Treet 7 Days Platinum	6
Treet Dura Sharp	26
Treet Platinum	37
Van Der Hagen Basics Super Stainless China	28
Vikings Hot Cayenne Platinum Swedish Sandvik Vuillon PRC	57
Vikings Mild	53
Voskhod Teflon Russia	9
Weishi	43
Wilkinson Sword Germany	21
Wizamet Super Iridium Extra Stainless	39

 

[helicopter]

Date	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24
Blade	Dorco ST300	New Platinum	Stainless	Vietnam	April 14, 2019
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	14	13	9	12	12
Median F (g)	91.5	84.5	80	87.5	94.5
Mean F (g) Btm	104	94	88	97	104
Mean F (g) Top	80	79	75	81	86
Mean F (g)	92	87	82	89	95
F (g) 1	101	89	104	97	98
F (g) 2	105	112	89	88	108
F (g) 3	98	75	78	114	99
F (g) 4	104	77	77	84	108
F (g) 5	105	80	93	96	104
F (g) 6	113	104	80	84	90
F (g) 7	99	84	99	107	93
F (g) 8	98	86	84	87	96
F (g) 9	104	96	98	99	108
F (g) 10	111	98	94	101	106
F (g) 11	103	111	84	115	109
F (g) 12	104	103	84	88	102
F (g) 13	95	91	85	92	112
F (g) 14	99	106	87	99	102
F (g) 15	124	105	85	104	119
F (g) 16	86	80	81	81	89
F (g) 17	83	78	71	73	76
F (g) 18	77	83	70	90	88
F (g) 19	87	95	78	90	93
F (g) 20	75	67	78	83	84
F (g) 21	86	86	74	96	92
F (g) 22	76	79	69	80	98
F (g) 23	76	73	80	75	75
F (g) 24	77	72	79	81	90
F (g) 25	77	74	75	85	88
F (g) 26	68	79	80	67	102
F (g) 27	85	75	71	69	73
F (g) 28	85	95	81	77	77
F (g) 29	88	85	63	77	86
F (g) 30	70	69	75	84	84

 

[Hopalong]

Lost me.

 

[helicopter]

Lost me.

I am measuring the sharpness of various blades and posting the raw data and index here. Try one of the links in the index to get to a blade in the main thread.

 

[helicopter]

Date	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24
Blade	Dorco STP301	Prime Platinum		Vietnam	~2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	20	20	20	20	20
Std. Dev.	22	24	20	27	21
Median F (g)	97	98.5	104	98	112
Mean F (g) Btm	111	120	122	130	129
Mean F (g) Top	81	83	86	86	96
Mean F (g)	96	101	104	108	112
F (g) 1	119	122	131	139	136
F (g) 2	120	119	122	96	126
F (g) 3	143	122	120	139	101
F (g) 4	106	87	117	124	137
F (g) 5	105	129	127	140	137
F (g) 6	74	114	124	167	143
F (g) 7	121	125	128	134	136
F (g) 8	121	131	106	122	124
F (g) 9	101	107	128	130	126
F (g) 10	103	140	116	108	124
F (g) 11
F (g) 12
F (g) 13
F (g) 14
F (g) 15
F (g) 16	86	90	84	80	87
F (g) 17	71	64	79	88	99
F (g) 18	78	71	86	88	94
F (g) 19	71	85	76	79	79
F (g) 20	93	76	81	87	90
F (g) 21	69	76	92	83	104
F (g) 22	81	86	80	97	89
F (g) 23	104	84	90	80	120
F (g) 24	73	77	90	99	93
F (g) 25	79	121	102	81	101
F (g) 26
F (g) 27
F (g) 28
F (g) 29
F (g) 30

 

[helicopter]

Date	7/29/24	7/29/24	7/29/24	7/29/24	7/29/24
Blade	Apache	Platinum Edge	Carlife-Razor	China	~2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	24	24	24	24	24
Std. Dev.	9	10	12	12	19
Median F (g)	78	79	81.5	80.5	83
Mean F (g) Btm	84	80	83	83	89
Mean F (g) Top	75	84	82	88	89
Mean F (g)	79	82	82	85	89
F (g) 1	83	74	70	80	73
F (g) 2	84	73	84	91	78
F (g) 3	84	76	105	75	78
F (g) 4	81	92	84	77	84
F (g) 5	79	74	79	79	71
F (g) 6	92	76	76	81	122
F (g) 7	72	107	69	72	88
F (g) 8	78	76	91	79	153
F (g) 9	109	81	81	104	79
F (g) 10	83	74	66	85	81
F (g) 11	78	78	73	106	83
F (g) 12	85	80	117	71	73
F (g) 13
F (g) 14
F (g) 15
F (g) 16	77	76	91	94	78
F (g) 17	67	82	82	74	86
F (g) 18	75	86	87	79	78
F (g) 19	77	95	87	72	83
F (g) 20	79	112	71	75	102
F (g) 21	81	81	80	94	100
F (g) 22	67	76	64	98	73
F (g) 23	72	87	71	103	105
F (g) 24	70	89	74	89	90
F (g) 25	77	76	85	80	105
F (g) 26	76	80	95	110	89
F (g) 27	77	71	91	82	73
F (g) 28
F (g) 29
F (g) 30

 

[helicopter]

Blade Sharpness Test Index
Blade	Test
7AM Plus Hi Platinum	5
Assured For Men (AFM) blade from Dollar Tree	2
Astra SP Green India	19
Astra SS Blue Russia	41
Bic Chrome Platinum	11
Cloud Super Stainless Red	32
Daylogic Rite Aid	50
Derby Extra Stainless Orange	52
Derby Extra Super Stainless Green	31
Dorco Prime Platinum STP300	49
Dorco Stainless ST301	63
Feather New Hi-Stainless Yellow Japan	8
Flydear SP	3
Flying Eagle Gillette Carbon Steel	33
Gillette 7 O'Clock Permasharp Stainless India	4
Gillette 7 O'Clock Super Platinum India Black	38
Gillette Blue	51
Gillette Minora Stainless Russia	25
Gillette Permasharp Stainless Russia	7
Gillette Platinum China	58
Gillette Platinum Russia	17
Gillette Rubie	55
Gillette Silver Blue Stainless Russia	16
Gillette Super Nacet	47
Gillette Wilkinson Sword India saloon	18
Gutche	29
Jifuli Platinum Edge Stainless GF-4395 Baolai	30
Kai	36
King C Gillette China	24
Leaf Single Edge Blade	1
Lord Platinum Super Stainless	34
Matgicol Super Platinum Swedish Stainless	23
Merkur	44
Nacet Stainless Russia A	10
Nacet Stainless Russia B	20
PearlMax Super Platinum	62
Personna Comfort Coated Blue USA blade by AccuTec	12
Personna Energizer USA	27
Personna Platinum Blue White de	59
Personna Platinum Chrome Super Blue White	60
Personna Red Edgewell Germany	54
Personna Red Ever-Ready Israel	56
Polsilver ES	48
RK Stainless Henson	40
Schick	45
Shark Platinum	15
Shark Super Chrome Super Stainless	13
Shark Super Stainless	14
Shavely DG	46
Shaving Revolution Platinum Japanese cn	61
Silver Star	42
Suneko My Way Amorphous Diamond Super Stainless New Platinum	22
Tiger Platinum Grey	35
Treet 7 Days Platinum	6
Treet Dura Sharp	26
Treet Platinum	37
Van Der Hagen Basics Super Stainless China	28
Vikings Hot Cayenne Platinum Swedish Sandvik Vuillon PRC	57
Vikings Mild	53
Voskhod Teflon Russia	9
Weishi	43
Wilkinson Sword Germany	21
Wizamet Super Iridium Extra Stainless	39
Dorco New Platinum ST300	64
Dorco Prime Platinum STP301	65

 

[helicopter]

Date	7/30/24	7/30/24	7/30/24	7/30/24	7/30/24
Blade	Matgicol	Super Platinum Red	Jiangxi Xirui	China	~2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	24	24	24	20	20
Std. Dev.	10	9	11	18	20
Median F (g)	92.5	84.5	86	86.5	90.5
Mean F (g) Btm	98	88	91	95	107
Mean F (g) Top	85	83	87	82	90
Mean F (g)	92	85	89	89	98
F (g) 1	99	85	85	92	145
F (g) 2	105	87	94	76	92
F (g) 3	104	77	104	91	95
F (g) 4	89	92	89	87	146
F (g) 5	108	86	132	86	90
F (g) 6	93	80	83	95	91
F (g) 7	95	84	85	84	141
F (g) 8	95	88	81	87	84
F (g) 9	111	115	90	94	98
F (g) 10	93	94	80	161	88
F (g) 11	97	82	81
F (g) 12	89	83	88
F (g) 13
F (g) 14
F (g) 15
F (g) 16	97	89	87	83	94
F (g) 17	91	82	86	84	87
F (g) 18	78	89	87	79	97
F (g) 19	76	82	85	74	98
F (g) 20	85	88	93	78	90
F (g) 21	72	96	86	87	87
F (g) 22	75	77	78	76	87
F (g) 23	89	83	94	81	87
F (g) 24	92	73	84	87	88
F (g) 25	95	87	85	92	80
F (g) 26	89	75	98
F (g) 27	85	69	85
F (g) 28
F (g) 29
F (g) 30

 

[helicopter]

Date	7/30/24	7/30/24	7/30/24	7/30/24	7/30/24
Blade	Rhinoceros	Swiss	Jiangxi Xirui	China	~2023
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	24	24	24	20	20
Std. Dev.	13	8	8	9	17
Median F (g)	88	78	76	82	86.5
Mean F (g) Btm	94	82	80	85	90
Mean F (g) Top	79	75	75	79	82
Mean F (g)	86	78	78	82	86
F (g) 1	118	91	78	84	94
F (g) 2	95	78	79	80	88
F (g) 3	96	97	74	92	85
F (g) 4	94	82	84	78	93
F (g) 5	89	76	78	81	126
F (g) 6	98	72	76	98	71
F (g) 7	90	74	74	83	89
F (g) 8	100	78	89	83	93
F (g) 9	105	81	76	90	85
F (g) 10	74	81	83	79	78
F (g) 11	69	88	88
F (g) 12	94	83	83
F (g) 13
F (g) 14
F (g) 15
F (g) 16	92	81	88	69	93
F (g) 17	70	73	67	64	71
F (g) 18	88	61	76	89	73
F (g) 19	72	73	72	72	63
F (g) 20	79	91	88	78	82
F (g) 21	73	74	72	83	122
F (g) 22	76	78	92	84	69
F (g) 23	76	73	74	75	63
F (g) 24	88	74	68	98	98
F (g) 25	73	68	64	78	89
F (g) 26	82	69	72
F (g) 27	77	81	71

 

[helicopter]

Blade Sharpness Test Index
Blade	Test
7AM Plus Hi Platinum	5
Apache	66
Assured For Men (AFM) blade from Dollar Tree	2
Astra SP Green India	19
Astra SS Blue Russia	41
Bic Chrome Platinum	11
Cloud Super Stainless Red	32
Daylogic Rite Aid	50
Derby Extra Stainless Orange	52
Derby Extra Super Stainless Green	31
Dorco New Platinum ST300	64
Dorco Prime Platinum STP300	49
Dorco Prime Platinum STP301	65
Dorco Stainless ST301	63
Feather New Hi-Stainless Yellow Japan	8
Flydear SP	3
Flying Eagle Gillette Carbon Steel	33
Gillette 7 O'Clock Permasharp Stainless India	4
Gillette 7 O'Clock Super Platinum India Black	38
Gillette Blue	51
Gillette Minora Stainless Russia	25
Gillette Permasharp Stainless Russia	7
Gillette Platinum China	58
Gillette Platinum Russia	17
Gillette Rubie	55
Gillette Silver Blue Stainless Russia	16
Gillette Super Nacet	47
Gillette Wilkinson Sword India saloon	18
Gutche	29
Jifuli Platinum Edge Stainless GF-4395 Baolai	30
Kai	36
King C Gillette China	24
Leaf Single Edge Blade	1
Lord Platinum Super Stainless	34
Matgicol Super Platinum Stainless Red	67
Matgicol Super Platinum Swedish Stainless	23
Merkur	44
Nacet Stainless Russia A	10
Nacet Stainless Russia B	20
PearlMax Super Platinum	62
Personna Comfort Coated Blue USA blade by AccuTec	12
Personna Energizer USA	27
Personna Platinum Blue White de	59
Personna Platinum Chrome Super Blue White	60
Personna Red Edgewell Germany	54
Personna Red Ever-Ready Israel	56
Polsilver ES	48
Rhinoceros	68
RK Stainless Henson	40
Schick	45
Shark Platinum	15
Shark Super Chrome Super Stainless	13
Shark Super Stainless	14
Shavely DG	46
Shaving Revolution Platinum Japanese cn	61
Silver Star	42
Suneko My Way Amorphous Diamond Super Stainless New Platinum	22
Tiger Platinum Grey	35
Treet 7 Days Platinum	6
Treet Dura Sharp	26
Treet Platinum	37
Van Der Hagen Basics Super Stainless China	28
Vikings Hot Cayenne Platinum Swedish Sandvik Vuillon PRC	57
Vikings Mild	53
Voskhod Teflon Russia	9
Weishi	43
Wilkinson Sword Germany	21
Wizamet Super Iridium Extra Stainless	39

 

[helicopter]

Date	7/30/24	7/30/24	7/30/24	7/30/24	7/30/24
Blade	PolSilver	Super Iridium	Extra Stainless	St. P., Russia	June 12, 2001
Shaves	0	P3	P6	P9	P12
Location	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top	Bottom/Top
Medium	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29	Stren 8 .29
Dulling Substrate	New	Paper	Paper	Paper	Paper
Measurements	30	30	30	30	30
Std. Dev.	9	9	9	8	9
Median F (g)	83	79.5	76.5	82	85
Mean F (g) Btm	90	79	81	85	85
Mean F (g) Top	80	80	75	79	86
Mean F (g)	85	80	78	82	86
F (g) 1	83	75	81	80	98
F (g) 2	99	94	82	68	99
F (g) 3	93	77	76	74	89
F (g) 4	99	84	87	86	81
F (g) 5	89	56	96	88	80
F (g) 6	90	99	72	93	77
F (g) 7	98	79	77	92	72
F (g) 8	95	77	76	100	83
F (g) 9	88	78	69	98	90
F (g) 10	82	65	88	85	84
F (g) 11	81	80	91	84	74
F (g) 12	82	78	74	85	88
F (g) 13	79	76	80	82	102
F (g) 14	99	92	99	70	79
F (g) 15	88	80	67	89	85
F (g) 16	76	78	76	72	78
F (g) 17	82	67	77	91	74
F (g) 18	61	80	71	82	91
F (g) 19	81	76	77	87	78
F (g) 20	80	83	61	71	86
F (g) 21	83	71	67	72	87
F (g) 22	76	85	68	72	92
F (g) 23	83	75	77	81	88
F (g) 24	74	85	79	81	88
F (g) 25	97	72	85	85	114
F (g) 26	81	85	76	83	75
F (g) 27	84	94	73	81	85
F (g) 28	86	88	84	78	84
F (g) 29	81	80	75	77	93
F (g) 30	78	81	73	76	77