Product name: Multi-functional fine electric grinder_x000D_ Type: Miniature mini electric drill electric grinder miniature engraving pen_x000D_ Power supply type: AC power supply_x000D_ Power supply voltage: 5v_x000D_ Rated output power: 10 (W)_x000D_ Electric drill structure: straight type_x000D_ Is the speed of the electric drill adjustable: No_x000D_ Drill bit clamping method: quick chuck_x000D_ Scope of application: Pearl punching, Wenwan cleaning, polishing, engraving and polishing, DIY manual auxiliary power tools, auxiliary cutting_x000D_ Chuck diameter: 1.2 (mm)_x000D_ Maximum diameter of drill bit: 1.2 (mm)_x000D_ Rated speed: 8000 (rpm)_x000D_ Drilling capacity-wood: 10 (mm)_x000D_ Drilling capacity-aluminum: 0.8 (mm)_x000D_ Drilling capacity-steel: 0.5 (mm)_x000D_ Weight: 0.5 (kg)_x000D_ Dimensions: length 9cm, width 2.5cm_x000D_ Standard accessories: Quick chuck, 180 brushless motor, Aluminum plated oxide housing, Toggle switch, Power supply rear seat_x000D_ Series: Red 180 mini mini electric drill electric grinder tool_x000D_ Mode of operation: handheld_x000D_ _x000D_ Package included:_x000D_ 1 * Grinding machine_x000D_ 1 * Drill chuck_x000D_ 3 * 1.0 drill bit_x000D_ 1 * Hexagon screwdriver_x000D_ 1 * Data cable