NUMA100 Large Size Excellent Straightness DTH Hammer Bit
The NUMA100 is a large-diameter Down-The-Hole (DTH) drill bit designed for mining borehole drilling applications. Engineered to fit the NUMA Challenger 100 DTH Hammer, this heavy-duty rock drilling tool delivers high penetration rates across various geological conditions.
Product Specifications
Type: DTH Button Bit (Down-The-Hole)
Diameter Range: 9-7/8" to 15" (250mm to 380mm)
Compatibility: NUMA 100 series hammers, interchangeable with Atlas Copco, Ingersoll-Rand, and Mission
Design: Carbide button inserts with various face configurations (flat, concave, convex) for optimal rock cutting
"NUMA100 bit" is the specialized cutting tool that pairs with the NUMA100 DTH hammer to efficiently drill deep, large-diameter holes in rock.
| Head Shape |
Head Diameter(mm) |
Shank Length (mm) |
Spline |
Port holes |
Button qty pcs x dia mm |
Weight (kg) |
| Button Type |
Gauge Buttons |
Front Buttons |
| concave face |
254 |
375 |
10 |
2 |
Domed |
12×φ19 |
8×φ18+19×φ16 |
89 |
| concave face |
275 |
375 |
10 |
2 |
Domed |
12×φ19 |
8×φ18+20×φ16 |
93.5 |
| concave face |
305 |
375 |
10 |
3 |
Domed |
15×φ19 |
27×φ18+8×φ16 |
103.5 |
| concave face |
325 |
375 |
10 |
3 |
Domed |
15×φ19 |
27×φ18+9×φ16 |
112 |
| concave face |
350 |
375 |
10 |
4 |
Domed |
16×φ19 |
32×φ18+14×φ16 |
121 |
| concave face |
400 |
375 |
10 |
4 |
Domed |
16×φ19 |
40×φ18+25×φ16 |
146.5 |
Competitive Advantages
- Compatibility matching over 95% against original equipment manufacturer specifications
- Competitive pricing compared to major brands while maintaining superior quality standards
- Enhanced performance and durability for demanding mining and construction applications
The NUMA100 DTH Hammer Bit represents the ideal cutting solution for creating large-diameter holes in challenging geological formations, combining precision engineering with robust construction for maximum drilling efficiency.
