These Diamond Core Drill Bits With F-Connection And Ejector Needle sizes are custom built to meet your needs. Please allow three-four weeks for delivery. Additionally, the hollow drill is available in different shank connections, different kinds of wall thickness, as well as special models.
We also stock standard sizes (1.0mm, 1.5mm, 2.0mm, 2.5mm, etc.) and these usually ship in a few days. If we are out of stock, they would automatically be on order and we would notify you of the estimated delay. Please see the standard size drill bit listing if you need these.
** 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.
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.