Features:
– [High-speed Steel Construction]: Made of heat-treated high speed steel with HRC48-50 high hardness, strong and durable. Clamping shank diameter: 19mm (Round), Radial drill sleet reduced resistance.
– [Standard Chip Flute Design]: Easy to exclude side sawdust, improvedrilling efficiency.
– [High Sharpness Blades]: Reduce labor intensity and speed upconstruction speed.
– [Versatile Uses]: Great for drilling square holes in wood with mortise and tenon machine.
Specification:
Material |
High speed steel |
Hardness |
HRC 48-50 |
Clamping shank diameter |
19mm (Round) |
Length |
210mm |
Size |
1/4inch (6.35mm), 5/16inch (7.94mm), 3/8inch (9.5mm), 1/2inch (12.7mm) |
Color |
Silver |
Great for |
Drilling square holes in wood with mortise and tenon machine |
Produce Included:
1 Pc x |
1/4inch (6.35mm) square hole drill bit |
1 Pc x |
5/16inch (7.94mm) square hole drill bit |
1 Pc x |
3/8inch (9.5mm) square hole drill bit |
1 Pc x |
1/2inch (12.7mm) square hole drill bit |
More Detail:
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