One And Three Eighths Inch Diamond Core Drill Bit With Eleven Inch Depth, Heavy Duty, Forty Five Percent Cobalt HRC Seventy Dry Core Bit, SDS Plus Hex Adapter, Five Eighths Eleven Thread, Laser Welded Segments For Concrete Masonry Brick Mortar
✔️ Heavy-duty, 70 HRC cobalt alloy, laser-welded segments, 11 in depth
This heavy-duty diamond core drill bit is built to cut through tough concrete, brick, mortar, and masonry. It's ideal for installing HVAC lines, pipes, and vents where clean, precise cores are required. The kit includes adapters for both SDS Plus and hex shank machines, expanding compatibility across tools.
✅ 1 3/8"/34.9 mm diameter; drilling depth 11"/279.4 mm; total length 12"/304.8 mm; thread 5/8-11; diamond segment height 10 mm
✅ 4.5x cobalt content vs standard 10%
✅ HRC 70 hardness for wear resistance and heat stability
✅ Laser-welded industrial-grade segments prevent breakage
✅ Includes SDS Plus and hex adapters for broad machine compatibility
| Dimension | Value | Metric |
|---|---|---|
| Diameter | 1 3/8 in | 34.9 mm |
| Drilling depth | 11 in | 279.4 mm |
| Total length | 12 in | 304.8 mm |
| Thread | 5/8-11 | N/A |
| Diamond segment height | 10 mm | 10 mm |
💡 What is a diamond core drill bit with laser-welded segments used for?
These bits are handy for making clean, precise cores in hard materials like concrete and masonry, making HVAC, plumbing, and electrical installations easier.
- Core drilling through concrete, brick, tile, and mortar- Long life thanks to high cobalt content and heat resistance
- Laser-welded segments prevent breakage under heavy cutting
- Compatible with SDS Plus and hex adapters across multiple machines