Feature(may vary by option.)

●Hollow drill bit teeth may not break easily. It depends on the silver welding technology to maintain the weld
●The force and smooth cutting puts stress on three blades at the same time
●Not easy to damage, this high speed steel drill bit maintains high quality, high hardness and abrasion resistance
●The drill up to 50mm deep, metal hollow core bit can easily solve the thickness of less than 50mm
●Suitable for cutting stainless steel, copper plates, steel plates, aluminum plates, etc

[21×50mm]

[22×50mm]

Description

Specifications:

Item Type: Hollow Drill Bit
Color: Silver
Material: High-speed steel
Size:
Approx. 20 x 50mm/0.79 x 1.97in)/) Approx. 21 x 50mm/0.8 x 2in)/) Approx. 22 x 50mm/0.9 x 2in) (Optional)
Size 1: about 20 x 50mm/0.79 x 1.97in
Diameter: approx. 20mm/0.79"
Depth: Approx. 2.0 inches (50 mm).
Shank Diameter: Approx. 19mm/0.75"
Inner hole: approx. 12mm/0.47"
Size 2: About 21 x 50mm/0.8 x 2in
Diameter: approx. 21mm/0.83"
Depth: Approx. 2.0 inches (50 mm).
Shank Diameter: Approx. 19mm/0.75"
Inner hole: approx. 13mm/0.51"
Size 3: about 22 x 50mm/0.9 x 2 inch
Diameter: approx. 22mm/0.87"
Depth: Approx. 2.0 inches (50 mm).
Shank Diameter: Approx. 19mm/0.75"
Inner hole: approx. 14mm/0.55"
Uses: Suitable for cutting stainless steel, copper plates, steel plates, aluminum plates, etc.

Package List:

1 x Hollow Drill Bit.