This professional class pneumatic 5 in. air angle die grinder and air straight die grinder have durable ball-bearing motor, delivers more power with better weight distribution, lighter materials and a more compact housing. Both of Die Grinders combined packed in a premium plastic carry box with accessories. Descriptions: Air Angle Die Grinder XX886: Free Speed: 20,000 rpm; Avg. Air Consumption: 3.0 cfm; Collet Size: 1/4, 1/8 inch; Exhaust: Front; Air Pressure: 90psi/6.3kg/cm2; Air Inlet: 1/4" NPT; Noise Level: 97 DBA; Overall Length: 5in/125mm; Net Weight: 1.0lbs/0.45kgs; Air Straight Die Grinder XX881: Free Speed: 25,000 rpm; Avg. Air Consumption: 3.0 cfm; Collet Size: 1/4, 1/8 inch; Exhaust: Front; Air Pressure: 90psi/6.3kg/cm2; Air Inlet: 1/4" NPT; Noise Level: 91 DBA; Overall Length: 5in/125mm; Net Weight: 0.73 lbs/0.33kgs; Include: 1pc x air angle die grinder XX886 1pc x air straight die grinder XX881 5pc x grinding stone 1pc wrench x 11mm 1pc wrench x 17mm 1pc x Nipple 1pc x ABS Carry Case 13(L) x9(W) x4(H) in.