SMALL HOLE DRILL TOOLS

Tapered Connection Button Bit

Raw material: alloy steel and tungsten carbides by heat forging treatment.

Button/tips: 4, 6, 7, 8
Taper angle: 7°，11°，12°
Diameter: 28-100mm
Skirt length: 50-80mm
Socket inside diameter: 19-26mm

Tapered drill rod

Taper angle: 7°，11°，12°

Body: H19 ,H22

Shank: 19x108mm (3/4〞x4 1/4〞), 22x108mm (7/8〞x4 1/4〞)

Length: 500- 8000mm

Integral Drill Rod

Length: 400-7200mm

Feature

1. Tapered drill bit is made of high-quality alloy steel and tungsten carbide from international renowned brands.
2. Advanced shot blasting and heat treatment process to increase the surface hardness of the drill bit.
3. More precise drilling, penetrate and deeper, wear-resistant, long service life, specialised for hard rock
4. The steel used in the bit skirt is forged to increase the density of the steel, making the drill stronger and longer lasting