Alpha Laser Core Bits are designed for wet or dry drilling of porcelain, sintered slabs, granite, quartz, engineered stone, marble, and other hard surface materials. Built for use with high-speed angle grinders, they support fast drilling and clean hole formation across fabrication and installation applications.
Each core bit features laser welded construction to improve segment retention and heat resistance during demanding drilling operations. The aggressive diamond segment design supports efficient drilling for faucet holes, plumbing penetrations, electrical openings, and sink cutout work.
Available Sizes
| Part No. | Diameter | Max RPM | Type | Thread |
|---|---|---|---|---|
| WLB00380 | 3/8" | 12,000 | Wet Only | 5/8"-11 |
| WLB00500 | 1/2" | 12,000 | Wet Only | 5/8"-11 |
| DLB00750 | 3/4" | 12,000 | Wet/Dry | 5/8"-11 |
| DLB01000 | 1" | 12,000 | Wet/Dry | 5/8"-11 |
| DLB01250 | 1-1/4" | 12,000 | Wet/Dry | 5/8"-11 |
| DLB01375 | 1-3/8" | 12,000 | Wet/Dry | 5/8"-11 |
| DLB01500 | 1-1/2" | 12,000 | Wet/Dry | 5/8"-11 |
| DLB02000 | 2" | 12,000 | Wet/Dry | 5/8"-11 |
| DLB02500 | 2-1/2" | 8,400 | Wet/Dry | 5/8"-11 |
| DLB03000 | 3" | 8,400 | Wet/Dry | 5/8"-11 |
| DLB04000 | 4" | 8,400 | Wet/Dry | 5/8"-11 |
