JOHNSON TOOLS 70mm Diamond Core Drill Bit with 8mm Segment Height for Granite and Stone Drilling
Price:
Negotiate
MOQ:
50pcs
Delivery Time:
Negotiable
Brand:
JOHNSON TOOLS
Product Description
Product Overview
Premium 70mm diamond core drill bits designed specifically for professional stone drilling applications. These normal segment type bits deliver exceptional performance on granite, marble, sandstone, limestone, and other natural stone materials.
Technical Specifications
Diameter: 70mm (2 3/4")
Shank Size: 12.7mm (1/2")
Total Length: 83mm (3 1/4")
Drilling Depth: 50mm (2")
Segment Height: 8mm
Detailed Specifications
| Item No. | Diameter (mm) | Segment Height (mm) | Segment Thickness (mm) | Teeth No. | Total Length (mm) |
|---|---|---|---|---|---|
| BGB70 | 70 | 8 | 3 | 7 | 83 |
How Diamond Core Bits Work
Diamond core bits operate through a milling process rather than traditional cutting. During manufacturing, individual diamond crystals are exposed on the segment surfaces, performing the milling work while being securely held by the metal matrix. The optimal balance between diamond performance and bond abrasion-resistance ensures maximum efficiency across different material types.
For hard, dense materials: Softer segment bonds wear faster, continuously exposing fresh diamond crystals for consistent cutting performance.
For soft, abrasive materials: Harder, abrasion-resistant segments retain diamonds longer, providing extended tool life.
Frequently Asked Questions
Can you company accept OEM?
We accept OEM orders for all products, including custom buyer logos and branding requirements.
Quality Control?
Each product undergoes strict quality control checks. With 15 years of manufacturing experience, we maintain consistent quality standards and provide products tailored to specific market requirements.
Shipping Methods?
Air Freight: 45-100kg gross weight for fast delivery. Sea Freight: Above 100kg for cost-effective shipping. Courier Services: TNT, DHL, FedEx, UPS for small orders with door-to-door service.
Minimum Order and Delivery?
Minimum order quantity is negotiable. Standard delivery timeframe ranges from 15 to 45 days depending on order volume.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Johnson Tools Manufactory Co.,Ltd
Location
Sales Dept address: No.11009, Building 8, K-Land Manhattan Square, No.5 Weihua Road, SIP, Suzhou, Jiangsu, China 215000
Contact Person
Vida lee