The Alpha Groove Cutter is a groove cutter designed to create level, consistent grooves for joint seaming in granite and engineered stone countertop fabrication. The tool uses a patent-pending design that maintains groove alignment to support uniform adhesive coverage and joint strength.
The cutter is available in two groove thickness options to match common slab dimensions, including 4.2 mm for 3/4" slabs and 7.5 mm for 1-1/4" (3 cm) slabs. Each version mounts directly to high-speed angle grinders and operates at speeds up to 14,500 RPM.
Thread configurations are offered in both 5/8"-11 and M14-2 to support compatibility with North American and European grinder platforms. The cutting profile is engineered to maintain consistent depth and levelness across the seam, allowing fabricators to produce repeatable joint geometry.
Key Features
- Joint Seaming Grooves: Creates consistent grooves for countertop seam preparation.
- Patent-Pending Design: Maintains level groove geometry for uniform adhesive bonding.
- Two Groove Thickness Options: 4.2 mm for 3/4" slabs and 7.5 mm for 1-1/4" slabs.
- High-Speed Operation: Rated for use up to 14,500 RPM.
- Angle Grinder Compatibility: Designed for use with common high-speed angle grinders.
- Thread Options: Available in 5/8"-11 and M14-2.
Specifications
| Part No. | Groove Thickness | Recommended Slab | Threads | Max RPM |
|---|---|---|---|---|
| GCW258 | 4.2 mm | 3/4" Slab | 5/8"-11 | 14,500 |
| GCW358 | 7.5 mm | 1-1/4" Slab | 5/8"-11 | 14,500 |
| GCW214 | 4.2 mm | 3/4" Slab | M14-2 | 14,500 |
| GCW314 | 7.5 mm | 1-1/4" Slab | M14-2 | 14,500 |
This groove cutter supports repeatable joint seam preparation for stone fabrication workflows.