8 pcs Center Drill Bit Set 5/64'' 7/64'' 9/64'' 11/64'' 13/64'' 5mm 1/4'
Dimensions: The most common hinge screw sizes are 5/64", 7/64", 9/64", 11/64", 13/64", 5mm, 1/4".
Automatic discharge: The wood chips will be automatically discharged from the top of the holes on both sides without blocking the drill bit. From the angle of the hinge, do not miss the center of the hole again.
Easy to replace: different hardness of wood requires different centering drills, you only need to remove the screws and replace the drill.
Easy to install: unique design and perfect punching effect. Suitable for installation of door hinges. Easy to use and install, one-hand loading and releasing can quickly change the position.