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
Product Attributes:
Weight (lbs.): 1.55 lb