Perfect for professional use and Do-It-Yourself home owners!


Features:
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In one step: you can drill, countersink and drill the hole in the perfect size for # 4, # 6, # 8, # 10 or # 12 screws.
- Premium HSS touch countersink will drill the pilot hole and the delay or counterbore for screws in one step. Countersink for driving the screw head with or slightly below the surface

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Ideal for plugs or plug buttons. 1/4 inch hexagonal shaft can be used with drills and quick changers.
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Professional Professional higher quality. By combining higher quality materials and patented technology, it delivers industrial quality tools to the markets at an affordable price.
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Specifications:
- Material: HSS Drill 4241
- Chamfer drill: carbon steel 45
- Suitable for workpieces with hardness below 25HRC, such as carbon steel, thin iron plate, insulation plate, PVC plate, wood plate, etc.
Dimensions:
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1/4 "HEX SHANK:
5 # 1.98 mm
6 # 2.38 mm (0.0937 inches) x 55 mm (L)
8 # 2.78 mm (0.1094 inches) x 60 mm (L)
10 # 3,175 mm (0.125 inches) x 63 mm (L)
12 # 3.56 mm (0.14 inches) x 65 mm (L)
The package includes:
5 * Premium HSS delay drill set
1 * Allen key