ROSCHEN GROUP
                                                                                                           
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105 Years
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Longer Life Diamond Core Drill Bits BQ NQ HQ PQ Series 56mm to 130mm for Mining Exploration

Price Negotiable
Price: $10
MOQ: 1 pcs
Delivery Time: Negotiable
Brand: ROSCHEN
Product Description
Longer Life Diamond Core Drill Bits for Mining Exploration
Impregnated diamond core drill bits designed for extended service life in mining exploration applications. Available in BQ, NQ, HQ, and PQ series with comprehensive size options.
Face Discharge Waterways (FD)
Recommended for very soft and broken ground or swelling core applications with Q®3 barrels. The face discharge ports provide excellent flushing to prevent blockages in waterway channels by reducing pressure to the ID and redirecting fluid to the bit face. Also available in WIDE waterway configurations.
Key Features
  • Face discharge holes for superior flushing performance
  • Stable quality with full product range availability
  • Timely delivery service
  • Specifically designed for mining exploration applications
Technical Specifications
Available Sizes
Standard drilling sizes including T2 series (56mm, 66mm, 76mm, 86mm, 89mm, 101mm, 116mm, 130mm) and comprehensive series coverage:
AQ
BQ
NQ
HQ
PQ
BQ3
NQ2
NQ3
NQTT
HQ3
HQTT
PQ3
PQTT
T2 46
T2 56
T2 66
T2 76
T2 86
T2 101
T6 86
T6 101
T6 116
T6 131
Crown Height Options
Available in 9mm, 12mm, and 16mm impregnation depths. Taller crown heights provide improved bit stability and reduced vibrations, enhancing bit life and performance.
Waterway Configurations
Various waterways available for diamond impregnated bits, allowing for optimal flushing in different ground conditions and drilling systems.
Matrix Selection
Impregnated bit matrices can be customized by our engineers according to specific ground conditions at client work sites.
Thread Types
Standard Q threads available, plus custom thread types as required by clients.
Rock Formation Compatibility
Series No. Rock Formations
11 Magnetite, metamorphic schist, gneiss, granite, basalt, gabbro, rhyolite, diorite, conglomerate, taconite
10 Magnetite, metamorphic schist, gneiss, granite, basalt, gabbro, rhyolite, diorite, conglomerate, taconite
9/10 Andesite, pegmatite, hematite, magnetite, metamorphic schist, gneiss, granite, basalt, gabbro, rhyolite, diorite
9 Andesite, pegmatite, hematite, magnetite, metamorphic schist, gneiss, granite, basalt, gabbro, rhyolite, diorite
8 Dolomite, marble, peridotite, andesite, pegmatite, hematite, magnetite, metamorphic schist, gneiss, granite, basalt
7/8 Dolomitic limestone, schist, serpentine, hard & mica schist, siliceous limestone, dolomite, marble, peridotite, andesite, pegmatite, hematite
7 Dolomitic limestone, schist, serpentine, hard & mica schist, siliceous limestone, dolomite, marble, peridotite, andesite, pegmatite, hematite
6/7 Medium-hard limestone, hard limestone, hard shale, dolomitic limestone, schist, serpentine, hard & mica schist, siliceous limestone, dolomite, marble, peridotite
6 Medium-hard limestone, hard limestone, hard shale, dolomitic limestone, schist, serpentine, hard & mica schist, siliceous limestone, dolomite, marble, peridotite
5 Claystone, sandy limestone, soft schist, medium-hard sandstone, siltstone, alluvial deposits, calcitic limestone, medium-hard limestone, hard limestone, hard shale, dolomitic limestone
4 Claystone, sandy limestone, soft schist, medium-hard sandstone, siltstone, alluvial deposits, calcitic limestone, medium-hard limestone, hard limestone, hard shale, dolomitic limestone
3 Soft shale, chalk, marly shale, medium-hard limestone, salt, frozen soil & ice, soft sandstone, sandy shale, claystone, sandy limestone, soft schist, medium-hard sandstone, siltstone, alluvial deposits, calcitic limestone
2 Soft shale, chalk, marly shale, medium-hard limestone, salt, frozen soil & ice, soft sandstone, sandy shale, claystone, sandy limestone, soft schist, medium-hard sandstone, siltstone, alluvial deposits, calcitic limestone
1 Sand, soft shale, chalk, marly shale, medium-hard limestone, salt, frozen soil & ice, soft sandstone, sandy shale, claystone, sandy limestone, soft schist
Additional Size Availability
Comprehensive coverage including AQ, BQ, NQ, HQ, PQ series with variations, T2 series (46-101mm), T6 series (76-131mm), and T series (36-86mm). Non-standard sizes can be manufactured according to client requirements.

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ROSCHEN GROUP
Location 65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact Person Bill, George, Michael

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