Hubei Milalion Metallurgical Machinery Technology Co., Ltd

Hubei, China

We are offering 7-7/8-mining roller bit for very soft rock with low compressive strength and high drillability such as shale, soft limestone, soft sandstone, pebble soil, soft dolomite, carbonatite and coal mine.

• MOQ 1 Piece(s)
• WOB: 29530-59250lbsRotary Speed: 60-100rpm

We are offering 9 7/8" iadc645 tricone bit. for medium hard and abrasive rock with high compressive strength such as limestone, sandstone, dolomite, taconite and copper mine.

We are offering 7-7/8 mining roller bit. For very soft rock with low compressive strength and high drillability such as shale, soft limestone, soft sandstone, soft dolomite and coal mine.

we offer 7-7/8 miniing roller bit. for medium-soft rock with low compressive strength such as shale, soft limestone, dolomite with interlayer and coal mine.

We are offering 7-7/8 miniing roller bit. For midiumhard and abrasive rock with high compressive strength such as limestone, sandstone, dolomite and hornstone.

• MOQ 1 Piece(s)
• WOB: 9000-18000lbsPin connection: 4 1/2"API

We are offering 9" IADC415 Tricone Bit. For very soft rock with low compressive strength and high drillability such as shale, soft limestone, soft sandstone, pebble soil, soft dolomite and coal mine.

• MOQ 50 Piece(s)

we are offering 6-1-4-iadc412-mining roller bit for very soft rock with low compressive strength and high drillability such as shale, soft limestone, soft sandstone, soft dolomite and coal mine.