110v 710w Compact Router Trimmer Kit Electric Variable Speed Woodworking Machine Amazing Durability Variable Speed Smooth Soft Start Accurate Depth Setting Ergonomic Design Wide Application Collet Chuck Capacity: 1/4' (6.35 mm) & 3/8' (9.5 mm),Input Power: 710W,Frequency: 50 / 60Hz,No Load Speed: 10,000-30,000 RPM,Max Depth: Approx.20 mm,Rated Voltage: 110V,Net Diameter without Trimmer Base: 2.55' (64.8 mm)