Taptered drill tools for small hole drilling ,small hole drilling bits and rods

Small hole drilling tools -tapered drill tools

R.S.Rock Drilling Tools provides all the small hole tapered drill rods and bits ,the drill rods has high fatigue strength, toughness and offers high wear resistance giving an efficient and economic drilling operation,can meet all small hole drill

1. Increased penetration rate:

2. Longer service life but lower drilling cost:

3.Can meet your all small hole drilling applications:

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DESCRIPTION

R.S,International rock drilling tools mainly ensure transmitting impact power into rock as efficiency, accurately and economically. Our drill rods and drill bits are developed and designed to give you great versitality, higher penetration rates, lower energy consumption, straighter holes, with less deviation and longer service life for your drilling projects.

Types and Features:

R.S.Rock Drilling Tools tapered Drill Rod is used for rock drilling, blasting holes and other drilling works in the quarries, coal mines, traffic and other contractions projects. It works with taper drill bits and has different length for various applications, our taper drill rods come in a variety of taper angles, generally, the light duty rock drill usually use 7 taper or smaller taper angle, the heavy duty rock drill mainly use 11、12 taper angle. And the basic theory is that taper drill rods and taper drill bits must be in the same tapered degree. We provide tapered rods in a full range of shank configurations and steel hex diameters for hand-held pneumatic drilling needs.

Tapered Drill Rods Specification：

(1)Steel grade: 95CrMo equivalent to SANDBAR 20 or C253, 55SiMnMo

(2)Shank size: hex.22mm×108mm , hex.22mm×159mm,hex.22mm×80mm,hex.25mm×108mm. hex.25mm×159mm

(3)Taper:4°46′,6,7 ,11,12 degree etc

(4)Length: 0.4m-10m

(5)Package: in wooden case or in bundles.

(6)Productivity: 50000MT / month

Effective Length: 400mm-4800mm (L)

Shank: H22 × 108mm

Taper: 4.8°, 6°, 7°, 11°, 12°

The tapered drill rod which is matched with taper chisel bits, taper cross bit and taper button bits, is mainly used for rock drilling, blasting holes and other drilling works in the quarries, coal mines, traffic and other constructions.