Hejian Perfecct Drill Equipment Co., Ltd.
1The bits can work under very high temperarure
.
2It's suitable formation is from soft to hard.
3Our price is very competitive with good quality and service.
4 Rich experience in this line (over 3o years).
5 Perfect service & perfect quality.
Formation of Kingdream steel tooth bit
Rock formation | Bit type | Bit size | Drilling weight | Rotary speed | ||
mm | inch | N/mm | r/mm | |||
Very soft | Soft marl, clays, sands, salts etc. | 1 | 187.3-346.1 | 7 3/8-13 5/8 | 441-735 | 120-50 |
444.5-660.4 | 17 1/2-26 | 196-686 | 90-60 | |||
Soft | Clays, soft shale, marl, sands, salts etc. | 2 | 95.2-174.6 | 3 3/4-6 7/8 | 245-490 | 100-50 |
187.3-346.1 | 7 3/8 13 5/8 | 490-784 | 90-40 | |||
444.5-660.4 | 17 1/2-26 | 196-686 | 60-40 | |||
Medium soft | Shale, marl sandstone, soft limestone etc. | 3 | 95.2-174.6 | 3 3/4-6 7/8 | 245-490 | 90-50 |
187.3-311.1 | 7 3/8-12 1/4 | 490-784 | 80-40 | |||
444.5-660.4 | 17 1/2-26 | 196-686 | 60-40 | |||
medium | Hard shale , limestone, medium/hard sandstone etc | 4 | 95.2-174.6 | 3 3/4-6 7/8 | 294-539 | 80-60 |
187.3-241.1 | 7 3/8-9 1/2 | 539-833 | 60-40 | |||
Pictures pf kingdream steel tooth bit
