In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.DTH bits are paired with their corresponding hammers (by drilling hole diameter and spline configuration). Customers can customize their DTH bits in various ways, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.

• Small to medium size drilling diameters
• Work in low pressure range, capable of drilling shallow to medium hole lengths

• Widely used in the excavetion of rock open pit mines,tunnels,quarries,hydropower and other large projects.
• High efficiency,low cost,stable performance

• Color: Green,Blue or Based on Customer requirements

CIR Series Low Air Pressure DTH Bit Specification:

Competitive Advantage

Applications

• Underground mining

• Down the hole rock drilling

 Button bit and Insert types:

Spherical Button Characteristics:
1.Universal button 
2.Good wear resistance
3.Best suited for hard ground
4.27000-48000PSI(180 to 320Mpa)
5.Suited for abrasive to very abrasive drilling conditions

 
Ballistic Button Characteristics:
1.Fast Penetration
2.Best suited for soft rock
3.10000-20000PSI(70 to 140Mpa)
4.Suited for non-abrasive drilling conditions

KSQ more dth button bits: