EN
Diamond Core Bit (NQ / HQ / PQ Series)

Diamond Core Bit (NQ / HQ / PQ Series)

Diamond core bits are used for geological exploration and core sampling drilling, compatible with NQ, HQ and PQ standard systems, and suitable for wireline core drilling rigs. Available manufacturing processes include Impregnated, Hot-Pressed, Sintered and Surface Set types, which can be customized by matching matrix hardness and diamond grade to different formations. Applicable rock formations include sandstone, limestone, dolomite, shale, basalt, andesite, granite, diorite, gabbro, quartzite and quartz-vein-bearing hard rocks.

+86 155-3251-3777

Learn about our products

Diamond Core Bit Specifications
Series Available Type OD (mm) ID (mm) Core Dia. (mm) Recommended Formations
NQ Impregnated / Hot-Pressed / Sintered / Surface Set 75.3 47.6 47.6 Sandstone, Limestone, Dolomite, Shale
NQ Impregnated / Hot-Pressed / Sintered / Surface Set 75.7 47.6 47.6 Basalt, Andesite, Granite (Medium–Hard to Hard)
HQ Impregnated / Hot-Pressed / Sintered / Surface Set 96.1 63.5 63.5 Limestone, Dolomite, Sandstone, Conglomerate
HQ Impregnated / Hot-Pressed / Sintered / Surface Set 96.7 63.5 63.5 Granite, Diorite, Gabbro (Hard Rock)
PQ Impregnated / Hot-Pressed / Sintered / Surface Set 122.6 85.0 85.0 Quartzite, Granite, Quartz-vein Hard Rock (Deep Hole)

Providing free solutions!

Name *

Email *

Name *

Message *

Send