Material: High Speed Steel
Type: Center Drill Bit
Surface Treatment: Polishing
Drilling Diameter: 2.2 MM~7.5 MM
Features:
- Brass and high-speed steel material, serviceable and excellent for use.
- Drill bush for precise positioning, will not shift.
- Sawdust will be automatically discharged from the top of the drill - Holes on both sides, not stuck drill.
- Unique design and perfect punch effect.
- Applicable to the installation of door hinge.
- Good tools for carpentry DIY or professional engineers.
Color: Silver
Size: 5/64", 7/64", 9/64", 11/64", 13/64", 5 mm, 1/4"
- Drill Hole Diameter Suitable Self-tapping Screw Size
- 5/64" 2 mm 2.2-2.8 mm
- 7/64" 2.8 mm 3-3.5 mm
- 9/64" 3.5 mm 4-4.5 mm
- 11/64" 4.5 mm 5-5.5 mm
- 5 mm 5 mm 5.5-6 mm
- 13/64" 5.2 mm 6-6.5 mm
- 1/4" 6.35 mm 7-7.5 mm
Place of Application:Power Tool Doors and Windows Core Drill Bit Set

Note:
- Please adjust according to hardness of the wood, if the wood is soft, choose a smaller size; if the wood is hard , you can choose a larger size or corresponding opening tool.
Product Weight : 220 G / 7.76 Ounces
Product Dimensions (L*W*H) : 11.5*10.0*1.5 CM / 4.53*3.94*0.59 Inches
Retail Packaging: No Packing