Dental floss on too small shanks. Shaved down shanks for the oposite. Ignoring it if the difference isn‘t major.

Greetings basshorn

The hollow brass rotors - in my view - were the best idea, and offered the lightest touch of any listed just previously. I don't have any experience with hollow rotors and I wonder why beside the more elaborate labor they where abandoned by the manufacturer that had them in their program. Just to ...

My understanding after having spoken to Peter Hirsbrunner about the subject is that the 'plastic' respectively Tryplene rotors where the last development step trying to find an economical attractive and efficient lightweight rotary valve construction. The need of lightweight rotors came primarily ...