Bit shank: TK14
Matched Hammer:TK18/Numa125
Bit face: Concave, Drop center
Hole Range:350-450mm
Drillsphere provides a comprehensive range of drill bits designed for all major DTH shank configurations, characterized by precision engineering,
superior heat-treatment, and high-quality tungsten carbide inserts.
Our advanced manufacturing processes and proprietary heat-treatment techniques guarantee consistent and reliable performance in our drilling
consumables. Each drill bit is equipped with rigorously tested tungsten carbide inserts, ensuring durability and efficiency.
Bits are available with or without a foot valve.
| DTH BIT Face design | ||
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Flat Face | Suitable for general purpose drilling,including hard and abrasive rock formations. |
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Concave Face | Recommended for drilling in soft to hard formations, the concave face design improves stability and reduces vibration, resulting in straighter holes. |
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Convex Face | Suitable for various drilling applications, including soft, medium-hard, and abrasive rock, providing both speed and durability. |
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Drop Center Face | Especially used in large diameter bits to ensure straight holes in piling and foundation drilling. |
| Carbides Shape Option | |
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Spherical |
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Parabolic |
| Drillsphere BITS FOR 14” HAMMER | ||||||
| Bit shank | Diameter | Qty*Button Diameter.mm | Flushing Holes |
Weight (kg) |
||
| mm | inch | Gauge | Front | |||
| TK14 Numa125 |
400 | 15 3/4 | 18*19mm+30*19mm | 22*16mm+Side 22*14mm | 3 | 250 |
| 450 | 17 3/4 | 33*19mm+33*19mm | 30*16mm+Side 30*14mm | 3 | 285 | |
| 501 | 19 3/4 | 21*19mm+48*19mm | 43*16mm+Side 45*16mm | 3 | 340 | |
