6mm Bore Aluminum Timing Pulley 5mm Pitch 12 Teeth 15mm Wide Belt Groove for 3D printer HTD5M6mm Bore Aluminum Timing Pulley 5mm Pitch 12 Teeth 15mm Wide Belt Groove for 3D printer HTD5M 6mm Bore Aluminum Timing Pulley 5mm Pitch 12 Teeth 15mm Wide Belt Groove for 3D printer HTD5M Description 5mm pitch (HTD) 12 teeth 6mm bore 15mm width timing Belt With 2 set screw to secure to the stepper motor shaft. One pulley Most Common Application 6mm shaft stepper motor and fits 15mm width timing belt 3mm Pitch HTD 5M Used on Kossel Delta and other