4Pcs Door Hinges Hole Saw Woodworking Hole Puncher Hexagon Bit Twist Wood Drill Bits 5/64" 7/64" 9/64" 11/64" Material: Brass + HSS, Surface plating Specification:5/64",7/64",9/64",11/64" Avoid splitting out hardwoods by pre-drilling your screw holes Positioning accuracy,will not shift,the chips will automatic discharge from the hole on either side of the top of the drill,not stuck drill. Works equally well nn metal, wood or plastic,a great helper for wood DIY and engineering use