Description: Suitable for hardness lower material, such as wood For use with Cordless drills , regular drills, drill presses, or low rpm rotary tools Great for making countersink holes for counter sunken screw heads as well as counterbored holes for plugs Can be combined with bench drill, to countersunk and inverted tapers of wood, plastics, aluminium alloys, etc Material: Bearing Steel Quantiy: 1 Set of 3 Pieces 5/64-15/64, 1/8-11/32, 3/16-17/32 Size: Approx. 60*40*14mm/2.36*1.57*0.55'' Package Includes: 3 Pieces Countersink bits Note: As different computers display colors differently, the color of the actual item may vary slightly from the above images. There is 2-3% difference according to manual measurement. Please check the measurement chart carefully before you buy the item