O.D FOR GEAR 9.3MM REF. THIS BE CAN USED ON GSR12V-15 ELECTRIC DRILL CORDLES SCREWDRIVER Model: 12V 13 teeth -550VC-8518 for GSR12V-15 3601H68102 electric drill Screwdriver maintenance spare parts Double ball bearings front and rear. High power and low noise. . High-speed high-torque DC motor, electric drilling machine. Model: 12v two-speed 13-tooth DC motor Rechargeable: yes colour: silver Material: metal Package Contents: 1 x electric drill screwdriver Only the above package content, other products are not included. Note: Light 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.