Specifications Model: Bosch 1273D (Variable Speed 4" Belt Sander) Part Number: 0601273934 Belt Size: 4" 24" (102 mm 610 mm) Motor: 10.5 Amp, 115V AC, 60 Hz Speed Range: Variable, 800?2700 RPM (adjustable via front dial) No-Load Belt Speed: 800?2700 ft/min (244?823 m/min) Weight: 11.0 lbs (5.0 kg) Length: 14.5" (368 mm) Height: 7.5" (191 mm) Dust Collection: Integrated "dustless" system with horizontal exhaust port; compatible with 1-1/4" or 1-1/2" vacuum hose or Bosch dust bag (PN 2605411035) Platen: Graphite-coated for reduced friction and heat; flush sanding edge on both sides Drive: Direct gear drive with sealed ball bearings Cord: 8 ft, 3-wire grounded, 14-gauge Handle: Ergonomic front grip with lock-on trigger; auxiliary top handle Belt Tracking: Manual adjustment knob (center tracking) Belt Release: Lever-actuated quick-change system (description exceeds maximum possible length)