Standard Cut Pinions

John Wardle Pinion Blanks are manufactured from EN8 DM, free cutting medium carbon steel.The blanks are designed to be more than long enough for most Longcase clocks.

Minimum diameter of 6 leaf pinion cut 3.20mm
Minimum diameter of 7 leaf pinion cut  4.55mm (over 3 teeth)
Minimum diameter of 8 leaf pinion cut 3.85mm
 

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