JINQUAN has the broadest range of hammers, bits, and related equipment of any supplier in the world.
JINQUAN has a comprehensive range of DTH drill bits to match all conceivable applications. Each bit is made from quality alloy steel, and has been precision machined to produce a perfect body, heat treated to the required hardness, given surface compression for fatigue resistance, and fitted with precision buttons manufactured in-house.
| DTH series | ||||||
| CIR | BR | TD | DHD/COP | GOLD/QL | MISSION | COPROD |
| DTH bits front face design | |||
| Flat | Concave | Convex | Drop center |
| Button configuration | ||
| Spherical | Ballistic | SpeedBit design |
Bit life and rate of penetration are the most important criteria in selecting the right bit for a particular application. In most cases, the focus is on productivity, so the fast cuttings removal features of the SpeedBit and Convex/Ballistic designs are preferable, to ensure the buttons are cutting clean, with the minimum of re-crushing.
