Features:
100% brand new and high quality
4 different sizes suit most use
Professional drilling tool aplicable to the installation of door hinge.
Size:
5/64\'\': Hole diameter is about 2mm， Use about 2.2 - 2.8mm tapping screw
7/64\'\': Hole diameter is about 2.8mm，Use about 3 - 3.5mm tapping screw
9/64\'\': Hole diameter is about 3.5mm，Use about 4 - 4.5 mm tapping screw
11/64\'\': Hole diameter is about 4.5mm，Use about 5 - 5.5 mm tapping screw

Specifications:
Material: Brass，HSS
Color: Sliver
Length: 83mm， 86mm， 93mm， 97mm

Hints:
Please select the drill according to the hardness of the wood.
If the wood is soft， please choose a smaller size， but if the wood is hard， you can select a larger size.

Package includes:
4 x Hinge Drill Bits