17Pcs Hinge Drill Hexagonal Shank Self-centering Drill Bit Set For Door and Window Derailment Holes

Specifications:  Product Name: Self-centering Hinge Drill Bit;  Material: High-speed Steel;  Shank Size: 1/4-Inch Hexagon Shank;  Center Drill Bits Size: 5/64', 7/64'', 9/64'', 11/64''*2, 13/64'', 5mm and 1/4";  Quantity: 17 Pcs × Self-centering Hinge Drill Bit.      Features:   - Unique design with perfect punch effect. Sawdust will be automatically discharged from the top of the holes on both sides, without drill blocked.   - According to the hardness of the wood, you can choose different centering drill, take the screw apart and you can replace the drill easily.   - Drill bush for precise positioning, without move. Applicable for the installation of the door hinge.   - Include 7 different hinge screw sizes for carpenters, cabinet, furniture makers and other wood working trades.   - Made of High-speed Steel, with high hardness, rustproof, solid, durable and excellent for use.  Package Included:  8 Pcs x Center Drill Bits;  8 Pcs x Replacement Drill Bits;  1 Pc x Hexagon Key