Bestgle 4Pcs Door Self-centering Hinge Drill, Window Hole Opening Center Drill Bit Hole Puncher Woodworking Tools 5/64'' 7/64'' 9/64'' 11/64''

Specification: Material: Brass, HSS Type: Core Drill Bit Size: * 5/64": Hole diameter is about 1.98 mm,Use about 2.2 - 2.8 mm tapping screw * 7/64": Hole diameter is about 2.78 mm,Use about 3 - 3.5 mm tapping screw * 9/64": Hole diameter is about 3.6mm,Use about 4 - 4.5 mm tapping screw * 11/64": Hole diameter is about 4.36mm,Use about 5 - 5.5 mm tapping screw Features ?The bits are surrounded by spring loaded guides that have a widow to show the drill bit depth while making adjustments. ?Perfectly center the pilot hole for hinges, drawer guides, handles, etc ?7/64" is good for drilling holes in smaller hinges and hardware like decorative boxes ?9/64" is ideal for medium to full size hinges and hardware ?11/64 is perfect for door hinges, gate locks and all large hardware