Item Name:
8mm Diamond Core Sintered Threaded Drill Bits for Glass
SKU:
DB-T-8
Description:
The 8mm Diamond Core Sintered Threaded Drill Bit is a hollow core diamond drill designed for making clean, round holes in glass. It is constructed with a sintered diamond cutting section at the tip, meaning diamond abrasive is distributed throughout the cutting head so the bit continues to cut as it wears. The threaded shank is made to mount into compatible threaded arbors and drilling setups, helping keep the bit secure during use. In lampworking and coldworking, an 8mm core bit is commonly used when you need a consistent hole size for hardware, hangers, tubing pass-throughs, or functional openings in thicker glass components.
How it is used:
- Secure the bit in a compatible threaded arbor and use a drill press or stable drilling setup for best control.
- Keep the drilling area wet with water or coolant to control heat and flush glass fines from the cut.
- Start the hole gently and let the diamond do the work with light pressure to reduce chipping.
- Clear the core frequently by easing up and allowing water to rinse the cutting area, then continue until the plug releases.
