Core barrel with bullet bit

Main applications：

1，Strong rock (up to 100 Mpa).

2，Suitable for cutting through fissured rock.

Features：

1，Kelly box 130mm/150mm/200mm/250mm customized.

2，Cutting ring with staggered arrangement of round shank chisels.

3，Easy replacement of round shank chisels.

4，Around wearing strips.

5，Chisel holders are welded to the bucket shell.

Production Process：

Parameters：

Diameter(mm)	Shell Length(mm)	Thickness(mm)	Teeth Qty
600	1200	16/20+40	4+2
700	1200	16/20+40	6+2
800	1200	16/20+40	7+2
900	1200	16/20+40	8+4
1000	1200	16/20+40	8+4+2
1100	1200	16/20+40	10+4+2
1200	1200	16/20+40	10+4+2
1300	1200	16/20+40	12+4+2
1400	1200	16/20+40	13+4+2
1500	1200	16/20+40	14+4+2
1600	1200	16/20+40	16+4+2
1700	1000	20+40	16+4+4
1800	1000	20+40	19+4+4
2000	800	20+40	20+4+4
2200	800	20+40	22+4+4
2500	800	20+40	24+4+4
Other sizes can be customized