ROSCHEN Diamond Core Drill Bits for Sandstone - PQ 122.3mm HQ 95.76mm NQ 75.44mm Impregnated Core Bits
Price:
Negotiable
MOQ:
1-5 PCS
Delivery Time:
Negotiable
Brand:
ROSCHEN
Product Description
Diamond Core Drill Bits for Sandstone Drilling
Product Overview
ROSCHEN diamond core drilling bits are engineered for demanding applications in hard rock and sandstone drilling operations. These impregnated core bits deliver exceptional performance across various drilling sizes including PQ, HQ, NQ, and other standard configurations.
Key Features
- Alloy steel body constructed from ASTM4142 or 42CrMo materials
- Heat treatment achieving 40-44 HRC hardness for high toughness and wear resistance
- Tip hardness exceeding 50 HRC through low pressure sintering
- Grade selection optimized for specific project requirements
- High feed rate capability with extended service life
- Minimized tool changing times for improved efficiency
Applications
Foundation creation, solid wall drilling, water well drilling, trenching operations, mining applications, and tunneling projects.
Technical Specifications
| Size | Outside Diameter Max (mm) | Outside Diameter Min (mm) | Inside Diameter Max (mm) | Inside Diameter Min (mm) |
|---|---|---|---|---|
| AQ | 47.75 | 47.5 | 27.1 | 26.85 |
| BQ | 59.69 | 59.44 | 36.52 | 36.27 |
| NQ | 75.44 | 75.19 | 47.75 | 47.5 |
| HQ | 95.76 | 95.38 | 63.63 | 63.38 |
| PQ | 122.3 | 121.8 | 85.09 | 84.84 |
| T2-101 | 101.12 | 100.8 | 83.82 | 83.57 |
| T6-101 | 101.12 | 100.8 | 79.12 | 78 |
Contact Information
Email: roschen@roschen.com; roschen@roschen.net
Telephone: +86 13764195009
WhatsApp/WeChat: 13764195009
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Company
ROSCHEN GROUP
Location
65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact Person
Bill, George, Michael