PORTER-CABLE 75182 Variable Speed Router Motor High-powered router motor generates five speeds: 10,000, 13,000, 16,000, 19,000 and 21,000 RPM 3-1/4 HP peak ensures consistent speed Completely sealed ball bearing construction for durability High-powered router motor generates five speeds: 10,000, 13,000, 16,000, 19,000 and 21,000 RPM 3-1/4 HP peak ensures consistent speed Completely sealed ball bearing construction for durability This item comes with a 1/2 inch Collet and also the Collet Wrench Can replace motor in Router Model 7518; also works with 7500 Series Fixed Base Model 75361