Hinge Jig Drill Guide Set, 35mm Bit, 35mm Cup Style Concealed Hinge Jig Drill Guide Set Door Boring Hole Bit Tungsten Carbide

In design with curve, the head is good at removing the debris and working efficiently. The diameter of bore is 35mm, drilling depth is adjustable from 15mm to 45mm, you can also remove the depth adjusting fastener, make the drilling depth no limit. The tip is specially designed to cut through hole cleanly, great for boring concealed hinges and door locks. Guided by the Circular Rim, Bores Any Arc of a Circle, in any direction, great for drilling flat bottom holes, pocket holes, or overlapping holes. Suitable for drill press, pistol drill, bench drill, vertical drilling machine, hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine etc.