Specifications:

7pcs Self Centering Drill
Unique value
- Long-term Durability: Brass shell, High-speed steel predrill,Appearance electroplating,Warranty 14 months
- Best Punch Performance: Positioning accuracy,will not shift,the chips will automatic discharge from the hole on either side of the top of the drill,not have trouble with wood-chip jamming
- This centering drill guide is a must tool in installing hinges, knobs,latches,locks or pulls,or others that needs screws on center

Size:
5/64" :Hole diameter is about 2 mm,Use about 2.2 - 2.8 mm tapping screw
7/64" :Hole diameter is about 2.8 mm,Use about 3 - 3.5 mm 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

5pcs Woodworking Countersink Drill Bits Set,Made of HSS 4241( Ti Titanium-coated)
Color: gold
size: Chamfer Drill
5# 2mm
6# 2.38mm
8# 2.75mm
10# 3.16mm
12# 3.55mm
Shank: 1/4"/6.35mm Hex Shank

What Is Inside the Package:
7pcs hinge centering drill bits