Features:
1. High frequency quenching, enhance the hardness.
2. Suitable for bench drills and electric hand drills, bench drills are recommended, which are easy to center.
3. Package includes 4 sizes of drill bits, 6mm, 10mm, 13mm, 16mm (1/4, 3/8, 1/2, 5/8 inches), meet your various needs.
4. Fastly and precisely drilling, great for making wood plugs.
5. Made of high carbon steel, durable, strong, no deformation.
Notice:
1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement.
Specification:
Type: Drill Bits Set for Making Wood Plug
Material: High carbon steel.
Specification:
Metric specifications: 6mm, 10mm, 13mm, 16mm (imperial specifications 1/4, 3/8, 1/2, 5/8 inches)
Shank diameter: 10mm
1/4: Shank diameter10mm, making wood diameter of 6mm,  making wood length within 22mm
3/8: Shank diameter10mm, making wood diameter of 10mm, making wood length within 23mm
1/2: Shank diameter10mm, making wood diameter of 13mm, making wood length within 25mm
5/8: Shank diameter10mm, making wood diameter of 16mm, making wood length within 26mm
Application: Suitable for bench drills and electric hand drills, bench drills are recommended, which are easy to center.
Include: 4 x Drill Bits(1/4, 3/8, 1/2, 5/8 inches)
Note: The speed should not be too fast, otherwise it is easy to produce smoke, burnt black, etc.

Package List:
4 x Drill Bits