127mm DHD340 QL40 Mission 40 DTH Bit For 4 Inch Hammer DTH Hammer Bit

127mm DHD340 QL40 Mission 40 DTH Bit for 4 inch hammer

Description

1. Rapid drilling speed, bit body wearless;

2. Advanced heat treatment process, ensure the drilling life longer than similar products in the market.

3. DHD, MISSION, SD, QL, NUMA,different series of products, it can meet needs of different working conditions.

Applications

Widely used in mines, quarries, earthworks and other engineering drilling blasting hole, guardrail hole,mountain reinforcement, anchorage and other engineering holes, geothermal exploration hole, Well bore and other fields.

Face shape Features

Concave Face

1. Capable of drilling straighter holes in medium to hard rock which is broken or less consolidated

2. Offers high penetration rate in the above stated rock conditions

3. Has excellent air flushing characteristics

4. Predominant face style for majority of drilling conditions

Flat Face

1. Have a superior performance in hard, abrasive and broken rock conditions

2. They however have a slower penetration rate in comparison to a concave face bit

Convex Face

1. This face has been designed to offer high penetration rate in soft rock such as shale, limestone etc

2. They are recognized for having excellent capability for drilling into moderately consolidated rock conditions

DHD340 High Air Pressure DTH Bit Specification:

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