China Drilling offers a wide variety of designs for naturalsurface set diamond core drill bit. Ourselection includes a variety of crown profiles, diamond grades and stone sizesas well as erosion-resistant features. Ournatural surface set bit can be very cost effective when drilling in softsedimentary rocks.

The profiles of the bit face or crown is important because it affects drillingspeed, hole diameter, and core recovery.

We offer a wide choice of profiles for surface-set diamond core drill bit thatcovers all common drilling conditions.As a rule, multistep bit drills fastest but are less robust in hard,broken conditions where round or semi-flat profiles are preferred.

Natural surface set diamond core drill bit is used to drill medium hard andsoft formation stones. Thespecifications are AQ, BQ, BQ3, NQ, NQ3, NQTT, HQ, HQ3, HQTT, PQ, PQ3, PQTT,NWF, HWF, PWF, SWF, 412, NWD4, AWT, BWT, NWT, HWT, NTW, BTW, BWG, NWG, HWG,NMLC, and HMLC. Samples areavailable. The bits are steps and halfround crowns. Diamond sizes are 6-10spc, 10-15 spc, 15-20 spc, 25-30 spc, 30-40 spc, 40-50 spc, and 60-80 spc. They are A Grade, AA grade, and AAAgrade.

Natural diamondsurface set double tube and single tube core bit is used to drill medium hardand soft formation stones. Thespecifications are T2 56, T2 66, T2 76, T2 86, T2 101, TB 56, B66, B76, B86,B101, B116, T6 76, T6 86, T6 101, T6 116, T6 131, T6 146, TNW, T6H, LTK48, andLTK60. Samples are available. The bits are steps and half roundcrowns. Diamond sizes are 6-10 spc,10-15 spc, 15-20 spc, 25-30 spc, 30-40 spc, 40-50 spc, and 60-80 spc. They are A Grade, AA grade, and AAAgrade.

Natural diamondnoncoring bits are used for noncoring drilling.The bits are 56mmand 76mm. Samples are available. The bits are steps and half round crowns.Diamonds sizes are 6-10 spc, 10-15 spc, 15-20 spc, 25-30 spc, 30-40 spc, 40-50spc, and 60-80 spc. They are A Grade, AAgrade, and AAA grade.

Surface set diamondcore drill bit is used to drill medium hard and soft formation stones. The specifications are BQ3, NQ3, NQTT, HQ3,HQTT, PQ3, PQTT, NWF, HWF, PWF, SWF, 412, NWD4, AWT, BWT, NWT, HWT, NTW, BTW,BWG, NWG, HWG, NMLC, and HMLC. Samplesare available. We offer steps and halfround crowns. Diamond sizes are 6-10 spc, 10-15 spc, 15-20 spc, 25-30 spc,30-40 spc, 40-50 spc, and 60-80 spc.They are Grade, AA grade and AAA grade.

This natural surfaceset diamond core drill bit is used to drill medium hard and soft formationstones. The specifications are BQ3, NQ3,NQTT, HQ3, HQTT, PQ3, PQTT, NWF, HWF, PWF, SWF, 412, NWD4, AWT, BWT, NWT, HWT,NTW, BTW, BWG, NWG, HWG, NMLC, and HMLC.Samples are available. We offersteps and half round crowns. Diamond sizes are 6-10 spc, 10-15 spc, 15-20 spc,25-30 spc, 30-40 spc, 40-50 spc, and 60-80 spc.They are A Grade, AA grade, and AAA grade.

As a China based diamond core drill bitmanufacturer, we provide customers with superior quality overshot, core barrelspare parts, hoist plugs and more. Dueto reliable performance and competitive prices, our products are exported to the USA, Chile,Mexico, Peru, Turkey,Mongolia, Russia, Thailand,Finland,etc.
If you are in need of any diamond drilling tools,please do not hesitate to contact us. We look forward to working with you.