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Features:
☉ Made of high speed steel with titanium coating, wear-resistant and durable
☉ 3-Flat (3/8") shank is compatible with most electric drilling tools
☉ Laser engraved numbers increases step visiblity
☉ Double flute design, reduce drilling resistance, fast chip removal
☉ 118° separation point tip design for higher drilling efficiency
☉ Drills holes of various sizes without changing bits
☉ Suitable for drilling holes in soft metals such as aluminum, tin, copper, etc. It is also well suited for use on non-metallic materials such as PVC and wood. Note: Not suitable for hard metals such as steel.

Specification:
☉ Materials: High Speed Steel
☉ Shank Type: 3 Flat
☉ Tool Flute Type: Straight
☉ Finish Type: Titanium Nitride
☉ Cutting Angle String: 118 degrees
☉ Package List:
- 5 x Step Drill bit
- 1 x Automatic Center Punch
- 1 x Aluminum Storage Box

Step Drill Bit Size:
☉ 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8 (inch)
☉ 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8 (inch)
☉ 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 (inch)
☉ 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2 (inch)
☉ 3/16, 1/4, 5/16, 3/8, 7/16, 1/2 (inch)