The Core Series Diamond Core Bit 1) Fast drilling rate 2) Strong cutting structure durability 3) resonable price 1.Surface-Set Diamond Bits are set with a singular layer of natural or synthetic diamond utilizing a hard matrix compound on the face of the bit. The diamond set...

Reet XS Coring Machine 1) Fast drilling rate 2) Strong cutting structure durability 3) resonable price 1.Surface-Set Diamond Bits are set with a singular layer of natural or synthetic diamond utilizing a hard matrix compound on the face of the bit. The diamond set design...

Diamond Core Drill Bit for Gianite 1) Fast drilling rate 2) Strong cutting structure durability 3) resonable price 1.Surface-Set Diamond Bits are set with a singular layer of natural or synthetic diamond utilizing a hard matrix compound on the face of the bit. The diamond set...

Thin-Walled Concrete Diamond Core Bit 1) Fast drilling rate 2) Strong cutting structure durability 3) resonable price 1.Surface-Set Diamond Bits are set with a singular layer of natural or synthetic diamond utilizing a hard matrix compound on the face of the bit. The diamond...

API 7-1 Standard Drill Collar Specifications 1.standard:API7-1 2.OD:79.4mm-279.4mm 3.factory directly delivery   API 7-1 Standard Drill Collar Drill collars is one of the most important product of hexin oil drillings which mainly used to provide bit weight to drill so...

API 7-1 non-magnetic drill collar Specifications 1.standard:API7-1 2.OD:79.4mm-279.4mm 3.factory directly delivery   API 7-1 non-magnetic drill collar Drill collars is one of the most important product of hexin oil drillings which mainly used to provide bit weight to...

9 3/4" API Drill Collar Specifications 1.standard:API7-1 2.OD:79.4mm-279.4mm 3.factory directly delivery   9 3/4" API Drill Collar Drill collars is one of the most important product of hexin oil drillings which mainly used to provide bit weight to drill so...

API Spiral drill collar Specifications 1.standard:API7-1 2.OD:79.4mm-279.4mm 3.factory directly delivery   API Spiral drill collar  Drill collars is one of the most important product of hexin oil drillings which mainly used to provide bit weight to drill so that...

Spiral drill collar Specifications 1.standard:API7-1 2.OD:79.4mm-279.4mm 3.factory directly delivery  Spiral drill collar  Drill collars is one of the most important product of hexin oil drillings which mainly used to provide bit weight to drill so that drill...

3 1/8" Spiral Drill Collars Specifications 1.standard:API7-1 2.OD:79.4mm-279.4mm 3.factory directly delivery    3 1/8" Spiral Drill Collars  Drill collars is one of the most important product of hexin oil drillings which mainly used to provide bit...