ITEM NAME:1/4 Inch Pneumatic Die Grinder Air Die Grinder Grinding Mill Engraving Tool A1M2 1/4 Inch Pneumatic Die Grinder Air Die Grinder Grinding Mill Engraving Tool A1M2 Small size, light weight, high speed, low noise. Small air consumption, high concentricity, simple, fast and convenient operation. Applicable to all kinds of molds, hardware products, glass, stone, handicrafts, jewelry, circuit board manufacturing and other needs blank trimming, cutting, grinding, finishing operations. Fine quality and practical, a perfect tool for polishing and grinding. Air tool style: air die grinder Air consumption: 4CFM Air pressure: 90PSI Air inlet: 1/4BSP Free speed: 23000rpm Length: 152mm / 6.1in Item weight: 349g / 12.3oz Material: metal Color: silver Package Contents: 1 * engraving machine 2 * disassembly wrench 1 * 3mm chuck 1 * 6mm chuck 1 * Japanese air intake connector