4Pcs Self Centering Hinge Drill Bits Set 1/4 Inch Hex Shank Hinge Drill Tool Woodworking Tools for Adjustable Door with 1 Hex Key

Hinge Drill Bit Set Size: Hinge drills come in 4 different specification 5/64", 7/64", 9/64", 11/64", shank 1/4" hex, with 1 hex key. Meet your different needs.

Centering Drill Material: Center drill is made of high speed steel drill bit and quenching treatment shell designed. Rustproof, solid, durable and superior drilling performance which. Reducing your working time by more than half, suitable for professionals and woodworking enthusiasts.

Self Centering Hinge: Features self-centering to reduce bit walking increases precision and efficiency when drilling. Adjustable drill depth, easy to use and install, change bits fast which one-handed load and release.

Hinge Bit Set Design: Double-sided hole design fast and automatic discharge sawdust from the hole on both sides, not stuck drill. They make alignment of holes so much easier, which helps you save time in removing sawdust.

Scope of Application: Widely used for furniture, kitchens, hinges, handles, drawer slides, woodworking, window door etc. Use low speed when drilling (usually keep in 2000r/min to 3000r/min), it can be adjusted appropriately according to the hardness of the wood.