my new attempt

[suicideneil]

They do have a 6mm shaft yeah (that sounds so rude)- visit SDP to custom order/make pinions, very reasonable prices.

[lincpimp]

If you go to sdp, make sure that you select metric unit on top of the list when you are in the online store. Then go to spur gears and select 6mm for the shaft size. I have an 18 and 20t pinion from them and they are nicely made.

[BL-Power]

Ah, ok thanks! I was very surprised by the uncommon sizes, until i've seen that they are measured in inches.