Features: *100% brand new and high quality *Used for wood perforation spherical door tip installation drawer tip plastic products wood plywood etc..Trepanning more *Sharp edge high hardness accurate positioning high precision smooth cutting impact resistance high toughness *Enable woodworkers to drill holes without passing through the material when a clean and precise bottom to a hole *The blade more sharp and durable it s head adopt arc curve design beneficial to chip removal perforation is more efficient *Suitable for hand held electric drill stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine Specifications: *Color: Yellow+Silver (As Pictures Show) *Material: Carbide *Total Length: Approx. 1-3/4 *Shank Diameter: Approx. 1/4 (6.35mm) *Head Diameter: Approx. 3/8 (9.52mm) &1/2 (12.7mm) Package Contents: 2*Router Bits Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.