$ 108.20
$ 108.20
$ 86.72
-
Size
Alpha Laser Core Bits - Wet/Dry Segmented Core Bits
Laser-welded segmented diamond core bits engineered for fast, clean holes in granite, engineered stone, porcelain, and most hard interior surfaces. The 3/8" and 1/2" sizes are wet-only; 3/4" through 4" run wet or dry. All bits thread directly onto standard 5/8"-11 angle-grinder spindles for hand-held countertop, hardscape, and pool-deck work.
Features
- Laser-welded segments - handle higher torque than brazed bonds
- 5/8"-11 thread fits any standard high-speed angle grinder
- Wet/Dry capability on 3/4"+ sizes; pavers can be drilled dry
- Maximum drilling depth: 4" per bit
- Sizes from 3/8" pilot holes up to 4" sink-radius corners
- Complete 11-piece kit (DLB11KIT) ships in a hard-shell toolbox
| Part No. | Diameter | Max RPM | Wet/Dry | Weight | UPC |
|---|---|---|---|---|---|
| WLB00380 | 3/8" | 12,000 | Wet Only | 0.4 lb | 749173462498 |
| WLB00500 | 1/2" | 12,000 | Wet Only | 0.4 lb | 749173462504 |
| DLB00750 | 3/4" | 12,000 | Wet/Dry | 0.5 lb | 749173462269 |
| DLB01000 | 1" | 12,000 | Wet/Dry | 0.5 lb | 749173462276 |
| DLB01250 | 1-1/4" | 12,000 | Wet/Dry | 0.6 lb | 749173462283 |
| DLB01375 | 1-3/8" | 12,000 | Wet/Dry | 0.6 lb | 749173462290 |
| DLB01500 | 1-1/2" | 12,000 | Wet/Dry | 0.7 lb | 749173462306 |
| DLB02000 | 2" | 12,000 | Wet/Dry | 1.0 lb | 749173462313 |
| DLB02500 | 2-1/2" | 8,400 | Wet/Dry | 1.3 lb | 749173462320 |
| DLB03000 | 3" | 8,400 | Wet/Dry | 2.0 lb | 749173462337 |
| DLB04000 | 4" | 8,400 | Wet/Dry | 3.0 lb | 749173462344 |
| DLB11KIT | Kit | 12,000 / 8,400 | Wet & Wet/Dry | 14.10 lb | 749173462559 |
- Thread the bit onto a 5/8"-11 angle grinder. Hand-tighten only - never wrench-tighten.
- For wet drilling, supply water continuously to the cut zone (G-Tape reservoir or hose feed).
- Use a pilot carbide bit or jig to stabilize hand-held starts on smooth surfaces.
- Maintain steady pressure - let the diamonds cut. Avoid percussion / hammering, which destroys the diamond grit.
- Pull the bit back every inch of depth to flush slurry and cool the segments.
- Maximum drilling depth per bit is 4". Use the Alpha Core Bit Extender for deeper holes.
WLB00380
| Part No. | WLB00380 |
WLB00500
| Part No. | WLB00500 |
DLB00750
| Part No. | DLB00750 |
DLB01000
| Part No. | DLB01000 |
DLB01250
| Part No. | DLB01250 |
DLB01375
| Part No. | DLB01375 |
DLB01500
| Part No. | DLB01500 |
DLB02000
| Part No. | DLB02000 |
DLB02500
| Part No. | DLB02500 |
DLB03000
| Part No. | DLB03000 |
DLB04000
| Part No. | DLB04000 |
DLB11KIT
| Part No. | DLB11KIT |
| Property | Detail |
|---|---|
| Tool Type | Diamond Core Bit |
| Bond | Laser-Welded Segments |
| Thread | 5/8"-11 |
| Max Drilling Depth | 4" |
| Country of Origin | Japan |
| Commodity Code | 8207.19.3060 |
Can I drill porcelain pavers dry?
Yes. Porcelain pavers and most hardscape stone can be drilled dry with the DLB-series bits. The WLB 3/8" and 1/2" are wet-only.
Why does my bit lose its bite quickly?
Most often percussion or hammering - these destroy the diamond grit. Let the bit cut under steady pressure, and use water on deep applications to flush swarf.
How deep can I drill with one bit?
4" is the maximum drilling depth. Use the Alpha Core Bit Extender for deeper holes.
Do I need a pilot bit for hand-held work?
Yes - a carbide pilot bit or drilling jig stabilizes the start on smooth surfaces and prevents walking.
Will these work on my angle grinder?
Any standard high-speed grinder with a 5/8"-11 spindle. Stay at or below the listed Max RPM (12,000 for under 2", 8,400 for 2-1/2"-4").
No product-specific videos are currently available from the manufacturer or DST.
⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.
⚠ WARNING: Drilling stone, concrete, and porcelain can produce respirable crystalline silica dust known to the State of California to cause cancer, lung disease, and reproductive harm. Always wear appropriate PPE.
Specifications
| Size | 1 3/8", 1", 1- 1/2", 1-1/4", 1/2", 2", 2-1/2", 3", 3/4", 3/8", 4", Kit |