Our diamond core drill bits are the best in the world. They are similar in function to a sintered drill bit, where the diamonds are completely interspersed throughout the metal, but our proprietary production process produces a stronger bit with a longer life span. Most sintered bits are produced by melting diamonds and metal power together. Our manufacturing process pulls the metal over a diamond matrix, which results in a higher concentration of diamond for superior cutting power. Additionally, each bit is grinded between peaks to allow for a smaller abrasion area with high rotation precision.
Our drill bits can yield 500 to 800 holes per bit. When combined with our cooling and the self-centering systems you have a fast and precise drilling tool.
These standard sizes are kept in stock. We anticipate a few days turnaround on all orders of these standard sized drill bits unless on backorder - we will notifiy you if that is the case. If you need a size not listed here, please see the custom size drill bits option.
** Don't forget the Counter Part. If this is the first time purchasing a new drill bit size, then you will need to also purchase a counter part with the same diameter. See our Counter Part listings for both standard and custom sizes. **
For questions or any additional special orders, please contact us by email at kevin [!at] guntherdiamondtools.com, or by phone at (520) 314-9809.