Drill bit:1.Cemented carbide buttons
2.Reasonable designs
3.Three kinds of faces design
4.Certificate: ISO9001:2008, SONCAP
Application range: All kinds of rock formation.
Face design: flat, convex, concave
Inserts design: spherical, ballistic, parabolic
Features: 1.Reliable quality, long service life, rare abnormal breakage during service life.
2.Good flushing effect to ensure high drilling rate
3.Strict quality warranty and compensation rules
4.High penetration rate
5.Longer service life
Markets: Italy, France, Russia, Greece,Canada,Korea, Chile, Brazil, Nigeria, Mongolia and etc.
Examples For Ordinary Bits
Concave, spherical(other designs of faces and inserts are available)
12" Shank Bit |
Bit Dia(mm) |
Bit Dia (Inch) |
Air Hose |
Guage Button |
Front Buttons |
Part No |
DHD1120 |
305 |
12" |
4 |
12×φ18 |
35xφ16 |
DHD1120-305 |
311 |
12 1/4" |
4 |
12×φ18 |
35xφ16 |
DHD1120-311 |
330 |
13" |
4 |
16×φ18 |
42xφ16 |
DHD1120-330 |
356 |
14" |
4 |
16×φ19 |
48xφ16 |
DHD1120-356 |
381 |
15" |
4 |
16×φ19 |
48xφ18 |
DHD1120-381 |
SD12 |
305 |
12" |
4 |
12×φ18 |
35xφ16 |
SD12-305 |
311 |
12 1/4" |
4 |
12×φ18 |
35xφ16 |
SD12-311 |
330 |
13" |
4 |
16×φ18 |
42xφ16 |
SD12-330 |
356 |
14" |
4 |
16×φ19 |
48xφ16 |
SD12-356 |
381 |
15" |
4 |
16×φ19 |
48xφ18 |
SD12-381 |
NUMA120 |
305 |
12" |
4 |
12×φ18 |
36×φ16 |
NUMA120-305 |
311 |
12 1/4" |
4 |
12×φ18 |
36×φ16 |
NUMA120-311 |
330 |
13" |
4 |
16×φ18 |
42×φ16 |
NUMA120-330 |
356 |
14" |
4 |
16×φ19 |
48×φ16 |
NUMA120-356 |
381 |
15" |
4 |
16×φ19 |
48×φ18 |
NUMA120-381 |
NUMA125 |
305 |
12" |
4 |
12×φ18 |
36×φ16 |
NUMA125-305 |
311 |
12 1/4" |
4 |
12×φ18 |
36×φ16 |
NUMA125-311 |
330 |
13" |
4 |
16×φ18 |
42×φ16 |
NUMA125-330 |
356 |
14" |
4 |
16×φ19 |
48×φ16 |
NUMA125-356 |
381 |
15" |
4 |
16×φ19 |
48×φ18 |
NUMA125-381 |