Features: Multiple uses: our grinding machine is suitable for grinding and deburring small and medium-sized surfaces in various grinding operations. Eccentric-spindle: this grinder-machine adopts super wear-resistant cast steel and quenched metal materials, with fine workmanship and high-precision. Finger pressure switch: the grinding machine conforms to the ergonomic design, finger pressure is labor-saving, easy to use for a long time and will not be tired. Air inlet and outlet holes: the air inlet and outlet holes are made of steel, which is hard and durable. The air outlet holes are empty for exhaust, and the air outlet volume is larger. Rust Proof Set: This screwdriver set adopts high qquality material which will avoid rust well. Specifications: Material: Metal Function:Grinding-machine Size:20.50 * 12.50 * 6.80cm includes: 1 * Grinding-machine