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- Fast Processing — Ships Within 3 Business Days
- Express Shipping — Delivered in 5–8 Business Days
- Free Shipping — Orders Over $10 (Most Destinations)
- Tax-Inclusive Delivery — No Hidden Duties for Most Orders
Warranty
Within 30 days of product delivery, if you encounter any of the following issues, we will offer a refund or product replacement.
Product arrived damaged, Incorrect product received, Quality problems during use.
FAQ
For more details, please visit our complete FAQ page. If you need further assistance, our professional team is always ready to help. Please contact us.
The BRSCHNITT 5/8"-11 Diamond Core Drill Bit is designed for efficient drilling on granite, marble, concrete, stone, and other hard materials. Featuring laser welded diamond segments, it provides strong bonding, stable cutting performance, and improved durability. The standard 5/8"-11 thread allows direct connection with compatible angle grinders for professional and DIY drilling applications.
Why Choose This Diamond Core Drill Bit?
1. Laser Welded Diamond Segments
The laser welded design securely connects diamond segments to the core body, providing reliable performance and longer service life during repeated drilling.
2. 5/8"-11 Thread Compatibility
Designed for compatible angle grinders, the 5/8"-11 connection provides a secure fit
without additional adapters.
3. Dry & Wet Drilling Applications
Suitable for granite, marble, concrete, and stone drilling. The 1/4"-4" size range covers various installation and renovation needs.
Applications
Suitable for:
• Granite
• Marble
• Concrete
• Stone Materials
• Pipe & Fixture Installation
• Construction & Renovation Projects
Operating Notice
• Do not use impact or hammer mode.
• Keep the tool stable and avoid excessive pressure.
• Allow the diamond segments to cut gradually.
• Use proper cooling methods for extended drilling operations.
Specifications
• Quantity: 1pc / 2pcs
• Diameter: 1/4"-4"
• Connection: 5/8"-11 Thread
• Technology: Laser Welded Diamond Segment
• Diamond Height: 3/8"
• Grit: #25/35
• Max RPM: 11000
• Recommended RPM: 6000
• Compatible Machine: Angle Grinder
• Application: Granite, Marble, Concrete, Stone
At BRSCHNITT, customer satisfaction is our priority. If you are not completely satisfied with your purchase, we are happy to assist you with returns and refunds according to the policy below.
Returns
Our return policy lasts 30 days from the date you receive your order.
To be eligible for a return:
• The item must be unused and in the same condition as received.
• The product must be in its original packaging.
• Proof of purchase or order information is required.
Returns requested after 30 days from delivery cannot be accepted.
Please note that used, modified, or damaged products caused by improper use, incorrect installation, or failure to follow product instructions may not be eligible for return or refund.
Refunds
Once your returned item is received and inspected, we will send you an email confirming receipt.
After approval, your refund will be processed to your original payment method.
Please note that refund processing time may vary depending on your payment provider or bank.
Return Shipping
BRSCHNITT will cover return shipping costs if:
• The product is defective;
• The item was damaged during delivery;
• The wrong product was shipped.
For returns caused by personal reasons, such as ordering the wrong item, selecting the wrong size/specification, or changing your mind, customers are responsible for the return shipping costs.
Exchanges
We provide product replacements for defective, damaged, or incorrect items.
If you receive an incorrect or damaged product, please contact us within 30 days of delivery and provide relevant order details and photos if needed.
Late or Missing Refunds
If you have not received your refund:
1. Please check your bank account again;
2. Contact your credit card company or payment provider;
3. Contact your bank, as processing times may vary.
If you have completed these steps and still have not received your refund, please contact us:
Email: customer-service@br-tool.com
WhatsApp: +86 186 1696 4557