DTH Button Bits

DTH Button Bits

Pneumec “Down the Hole” Button Bits are manufactured from the highest quality European steels and carbides. They undergo rigorous inspection checks throughout their manufacture providing you with a high performance, dependable cutting tool.

Pneumec Button Bits are available in a wide range of sizes to suit most drilling applications and the different types of pneumatic hammers. Because Pneumec realizes your cutting needs are sometimes very varied we produce three shapes of cutting head as shown below. Our Button Bits are normally fitted with Hemispherical Buttons as these offer good cutting characteristics for most ground conditions. However should you require Ballistic or Parabolic, or a combination of two shapes, then these can be provided upon request.

DTH bits are available from 90mm diameter up to 1200mm diameter. You can also choose different profiles for tungsten carbide and face design to suit your application.


DTH Hammer Bit Dia. (mm) Shank
Thumper 30 90 – 100 MACH33, DHD4.5
Thumper 40 102 – 115 DHD340, QL40/44
Thumper 50 127 – 152 DHD350
Thumper 60 165 – 216 DHD360, QL60/66
Thumper 80 190 – 295 DHD380
Thumper 100 254 – 318 SD10
Thumper 120 305 – 470 SD12
Thumper 180 508 – 610 SD18, N180
Thumper 240 610 – 754 N240
Thumper 240S 700 – 1000 P240S
Thumper 300 750 – 1200 P300