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DTH bit

  • Middle Pressure DTH Drill Bits , Semi-Ballistic Insert Convex Face SD8 Hammer Bits
  • Middle Pressure DTH Drill Bits , Semi-Ballistic Insert Convex Face SD8 Hammer Bits
Middle Pressure DTH Drill Bits , Semi-Ballistic Insert Convex Face SD8 Hammer BitsMiddle Pressure DTH Drill Bits , Semi-Ballistic Insert Convex Face SD8 Hammer Bits

Middle Pressure DTH Drill Bits , Semi-Ballistic Insert Convex Face SD8 Hammer Bits

  • Type: DHD/COP/QL Series bit
  • Machine Type: Drilling Tool
  • Diameter: 57mm-660mm
  • Color: Golden or customize
  • Product description: Middle Pressure DTH Drill Bits , Semi-Ballistic Insert Convex Face SD8 Hammer Bits is our main product.
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Middle Pressure DTH Drill Bits , Semi-Ballistic Insert Convex Face SD8 Hammer Bits

DTH bit is our main product. After mang years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.  

1.high and low air pressure down-the-hole drill bits 
2.Low air pressure holeDia.:65-220mm  

3.High air pressure hole Dia.:85-305mm   

4.Face type:drop center/concave/convex/double gauge/flat   

5.Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.


All the products are manufactured as per the international standard and well compatible with the brand of Atlas Copco,
Ingersoll-Rand, Sandvik etc.

Specification of dth hammer button bits

Diameter: (mm)


1-2 inch low air pressure DTH bits
Shank: BR1, BR2, DHD2.5

57/64/70/76/80/82/90

3 inch high Air pressure DTH bits
Shank: BR3,DHD3.5,COP34,COP32,QL30,M30,IR3.5

85 / 90 / 95 / 100 / 105/110

4 inch high Air pressure DTH bits
Shank:DHD340,COP44,M40,SD4,QL40

105 / 110 / 115 / 120 / 127/130

5 inch high Air pressure DTH bits
Shank:DHD350,COP54,M50,SD5,QL50


133 / 140 / 146 / 152 / 165

6 inch high Air pressure DTH bits
Shank:DHD360,M60,SD6,QL60,COP64

152 / 165 / 178 / 190 / 203

8 inch high Air pressure DTH bits
Shank:DHD380,COP84,M80,SD8,QL80


195 / 203 / 216 / 254 / 305

10 inch high Air pressure DTH bits
Shank:SD10, NUMA100

254/270/279/295/305

12 inch high Air pressure DTH bits
Shank:SD12,DHD1120,NUMA120,NUMA125

305/330/343/356/368/381

15 inch high Air pressure DTH bits
Shank: DHD1150, SD15,NUMA125

381/391/435/457/483/503

Over 20 inch high Air Pressure DTH bits
Shank: NUMA180,NUMA240,

483/508/560/578/610/660