Just bought one of these off Ebay.


Anyone have any experiance of these?
They work by cutting the knurl as opposed to squashing the pattern on.
I did a web search and found some info on the Dorian one.
They also do a straight knurl that carries one diagonal wheel at the same helix angle so it cuts straight.


After I've had a play with this toy I might attempt to do a straight one.

I often need long straight knurls for the motor shafts to be pressed into the rotors.

John S.
Nottingham, England