Product Name : Spur tools Material: 45# steel Model: 1 mould Hardening: No Force angle: 20° Bore: Small Tooth thick: 10mm Tooth Pitch:3.14mm Diameter: 59~73mm Teeth: 57T - 71T Shape: Cylindrical gear Position: External equipment Shape: Spur equipment Condition: New, Never used Product Advantage: 1 Strong and sturdy 2 Stable functionality 3 Safe and reliable four Smooth transmission five Long life Note: 1 Mod No Hardening 1.5-5 Mod Hardened Scope of application:Motorcycle parts: driven gears and components, sprockets, starter pawls, ratchets, famous person wheels, double gears, secondary gears wheel, duplex gears, secondary gears, gears, pushrod cams, bushings, plain bearings, centring bushings, driven discs, intake and exhaust gears, and Follower discs, intake and exhaust valve seats.