38g
Aluminum MXL 50 Teeth 12mm Bore 11mm Belt Timing Idler Pulley Synchronous Wheel
The edges on Omni Tools are chamfered to prevent accidental cuts.
Aluminum 20 Teeth 12mm Bore 5mm Pitch Timing Belt Pulley for 15mm Belt
You will find that this ultrasonic cleaning solution removes wax and polish residues effectively.