Sleek & noiseless operation Application: die contouring, repairs, weld cleaning, button bit grinding Rpm-35, 000, air pressure: 6kg/90psi 6 mm collet approx. Length-140mm, approx wt. 600gms airinlet-1/4"bsp hose size dia- 3/8" air cons. 0.4m3/min Operation- lever Per piece or boxes of 12