The 100 Features: " 6.5 Amp AC/DC " 22,000 RPM " 1/4" collet " Precision machined aluminum motor housing and base " Accurate micrometer depth-of-cut adjustment " 100% sealed ball bearings " Standard Equipment: Router motor, base #1001, 1/4" collet #42154, collet wrenches #42157, and operating manual Specifications: " Power: 120 VAC, 25-60 HZ/ 120 VDC " Peak 7/8 " Rated Input Current (Amps): 6.5 " Motor Diameter: 3 1/2" " No-Load Speed (RPM): 22,000 RPM " Collets: Standard: 1/4" " Base: Round