OD FOR 9.3MM GEAR REF. THIS BIT CAN BE USED ON GSR12V-15 POWER DRILL LEADS SCREWDRIVER Model: 12V 13 teeth RS-550VC-8518 DC GEAR motor for GSR12V-15 3601H68102 electric drill Screwdriver maintenance spare parts Front and rear double ball bearings. High power and low noise. Longevity. High speed high torque DC motor, electric drill. Model: 13-tooth two-speed 12V DC motor Rechargeable: Yes Color: Silver Material: Metal Package Content: 1 x Electric Drill Screwdriver Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: The data is all manual measurement, please allow 1 - 3cm error, due to the light and display difference , there will be some color difference, depending on the physical object received Delivery Quantity: (according to the main image)