Continuous and variable speed control. Forward/ Reverse operation switch. Manual or Foot Brake control over "on/off switch". Model NumberNS208Electrical110V/60hz & 220V/50hz; output 18VDC, 0.5A.Rotary speed20,000-25,000 rpmChuck3/32" (2.35mm)Packing12pcs/cartonG.W1.5kgColorContentBasic Bit and Sanding BandHand Piece StandFoot Pedal SwitchUser's Manual