High Performance Down The Hole Drill Bits 152mm Without Foot Valve Valveless

All Adriller products are compatible with many products manufactured by Sandvik, Atlas Copco, etc.

all our products are widely used in mining, tunneling, quarrying, construction, and civil engineering project.

DTH bits
1. manufacture as your requirement
2. bit diameter, face shape
3. carbide button shape
4. number of air hole

Carbide Selection

Carbide Designs

Perhaps the most fundamental decision when selecting different carbide

configurations is profile shape. Button bits most commonly have either a hemispherical

or semi-ballistic carbide design; however it is not uncommon to use other carbide designs as well.

Faster

Shorter lifetime and susceptible to breaks : Conical Full Ballistic

Penetration rate:

Tungsten carbide life time. Semi Ballistic

Slower

Longer lifetime and less susceptible to breaks: Crown Point and Hemispherical

Head Profile Design

Flat Face

Applications : Hard and abrasive formations, all round

Typical formations: Granite, hard limestone, basalt

Convex

Applications: Soft to medium hard rock, high penetration rate.

Typical formations : Limestone, hard limestone, shale, granite, basalt

Concave

Applications: Medium hard to hard formations, less abrasive, fractured formations, excellent control over hole deviation

Typical formations : Granite, basalt

Concave Kupa

Applications : Special design with ballistic front buttons, medium hard to hard formations, fractured formations.

Typical formations :Granite, basalt

Scope of application:

Mining, quarry, road building, well hole drilling, blasting, landslide prevention, dam reinforement, anchoring, geothermal, hydrology, etc