Yeah. I wonder why since even the picture clearly shows how Gillette and Mach3 should be spelled. Gillette is also spelled correctly including the double L, double T, and E at the end with the only mistake the R added.
The OP seems to be pretty comfortable with English since he/she uses words like "usual" and "disassemble" (spelled correctly). Other than the name, the sentence structure and spelling are perfect.
If you want to get the built up lather and hair out of every single crevice, I suggest trying this...make sure you let it soak for a few days too I'm kidding by the way...don't clean your razor with acid...it may permanently remove facial hair and...well perhaps your face in general.
Actually, this post reminds me of my days in a bicycle shop when a guy brought in a rusty falling apart Huffy and kept insisting that he get it fixed. I told him there was only one way to fix his bike, and showed him this picture...