1/4" (6mm) AIR DIE GRINDER In Delhi RP-17313 Light weight and easy to use. Great for high speed grinding, porting smoothing, general polishing and deburring. Used for all kind of mold, metal products and handicrafts. the manufacturing of circuit board, blank finishing, grinding finishing and soon. Description Model: RP-17313 Grinder Cap : 1/4" Free Speed : 25000RPM Avg. Air Consumption : 3cfm (85.5L/min) Air Intel : 1/4’’NPT Sug. Air. Comp : 1.5HP Air Hose : 3/8"ID Overall Length : 151mm Net Weight: 0.32kg Packing : 20Pcs