3M Die Grinder 20239, 1 HP 1/4 in Collet 12,000 RPMGeneral Information Brand 3M Equipment Type Die Grinder Power Type Pneumatic Product Type Die Grinder Country Of Origin United States Sold As Case Lead Time 2 days California Residents Proposition 65 Warning Dimensions and Specifications Collet Size 1 4 in Maximum Speed 12000 rpm Net Weight (Imperial) 3. 3 lb Net Weight (Metric) 1. 5 kg Overall Height (Imperial) 4. 63 in Overall Height (Metric) 11. 75 cm Overall Length (Imperial) 12. 5 in Overall