Compare Ingersoll-Rand 300 Series Die Grinders 0.33 HP, 1/4 in NPT(F); 6.00 mm, 20,000 rpm, 0.33 hp $211.90
Compare Ingersoll-Rand 301 Series Die Grinders 0.33 HP, 1/4 in NPT(F); 6.00 mm, 25,000 rpm, 0.33 hp $174.20
Compare Ingersoll-Rand 5000MAX Series Die Grinders, 1/4 in NPT(F); 6.00 mm, 20,000 rpm, 1/3 hp; 2/5 hp $325.00