Application of DTH Hammer Bits:
The bit is the wear component fitted to the bottom of a DTH hammer, taking the direct impact against rock. Shank pattern has to match the hammer exactly, so bits are supplied across the standard shank families to fit whatever hammer is already on site.
Features of DTH Hammer Bits
– Covers standard shank series: NB, N, SD, QL, and DHD.
– Matched spline count and shank diameter per model for a precise hammer fit.
– Sized from small (DHD3.5) up to large-diameter (DHD112S) shanks.
Specification of DHD Series Hammer Bits
| Model | Splines | Shank Dia. | Shank Length |
| DHD3.5 | 8 | Ø54.7 | 181mm |
| DHD340 | 8 | Ø64.7 | 210mm |
| DHD350 | 8 | Ø84.2 | 261mm |
| DHD360 | 8 | Ø101.3 | 308mm |
| DHD380 | 8 | Ø128.5 | 350mm |
| DHD112 | 8 | Ø183.5 | 490mm |
| DHD112S | 10 | Ø273 | 636mm |
Note: NB, N, SD, and QL series bits also available — confirm hammer model and shank type before ordering.