Optional 14 Tooth 48P Optional Steel Pinion Gear for 5mm shaftFEATURES: CNC Steel Gear then Nitride to increased wear resistance, improved fatigue life, and enhanced corrosion resistant BlackBlack Steel base construction with 4mm set screwLonger Base surface for maximum contactYOU WILL RECEIVE: One pinion gear One set screw 4x4mmOne 5mm to 1/8 conversion SleeveREQUIREMENTS: 2mm hex wrench to install the set screwSPECIFICATIONS: length: 14mm48 Pitch 14 toothCOMMENTS: This gear is designed for 5mm Shaft or 1/8 Shaftdescription revised by: WP June 10, 2014.