Alpha Vortex Intricate & Flush Cutting Blade
Pickup currently unavailable at Dynamic Stone Tools Warehouse (Manassas Park, VA)
Description
Description
Alpha® Vortex Intricate & Flush Cutting Blade
The Alpha® Vortex is the evolution of the discontinued Duo Trak Blade, purpose-built for flush cutting, 90-degree inside corners and intricate shapes such as sink-bowl cut-outs. Dual side-protection segments along both faces of the blade boost rigidity and life. The granite versions (FCD) use a sintered diamond bond; the marble version (FCM) uses an electroplated bond for chip-free cuts on softer stones. The Vortex mounts on any high-speed angle grinder via the matching Quad Drive adapter — BAH-5/8 for 5/8"-11 spindles or AAH-20 for 20 mm / M14 grinders.
Features
- Flush and intricate cutting in one blade — sink bowls, corners, curves
- Dual side-protection segments boost durability and chip-free finish
- FCD (Granite) blades: sintered bond for granite and engineered stone
- FCM (Marble) blade: electroplated bond for marble and softer natural stones
- 20 mm Quad Drive interface — requires BAH-5/8 or AAH-20 adapter
- Wet or dry capable — wet cutting maximizes life and suppresses silica dust
| Part No. | Size | Stone | Thickness | Max RPM | Drive | UPC |
|---|---|---|---|---|---|---|
| FCD40AH | 4" | Granite | 2.5 mm | 14,500 | 20 mm Quad Drive | 749173470332 |
| FCD50AH | 5" | Granite | 2.5 mm | 12,200 | 20 mm Quad Drive | 749173470349 |
| FCM50AH | 5" | Marble | 1.6 mm | 12,200 | 20 mm Quad Drive | 749173470356 |
- Match the blade to the stone: FCD for granite / engineered stone, FCM for marble / softer stones. Do NOT run the FCM on granite — the electroplated diamonds will dull immediately.
- Install the appropriate Quad Drive adapter (BAH-5/8 for 5/8"-11 spindles, AAH-20 for 20 mm / M14 grinders). The Vortex must be used with an adapter.
- Seat the blade so the drive pins fully engage the countersunk holes, then tighten by hand and snug with a wrench.
- Spin up under no-load to verify true running before plunging.
- Cut wet whenever possible — wet cutting extends blade life and keeps respirable silica out of the air.
- Use moderate, steady feed pressure; let the blade do the work to maintain chip-free edges.
20 mm Quad Drive — 4" Vortex for Granite — FCD40AH
| Part No. | FCD40AH |
| UPC | 749173470332 |
| Type | 4" Vortex for Granite |
| Attachment | 20 mm Quad Drive |
| Thread | 20 mm arbor (requires BAH-5/8 or AAH-20 adapter) |
| Recommended For | Flush / intricate cutting on granite and engineered stone |
| Packaged Weight | 0.40 lbs |
| Package Dimensions | 8.5" x 6.75" x 0.5" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
20 mm Quad Drive — 5" Vortex for Granite — FCD50AH
| Part No. | FCD50AH |
| UPC | 749173470349 |
| Type | 5" Vortex for Granite |
| Attachment | 20 mm Quad Drive |
| Thread | 20 mm arbor (requires BAH-5/8 or AAH-20 adapter) |
| Recommended For | Flush / intricate cutting on granite and engineered stone |
| Packaged Weight | 0.50 lbs |
| Package Dimensions | 8.5" x 6.75" x 0.5" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
20 mm Quad Drive — 5" Vortex for Marble — FCM50AH
| Part No. | FCM50AH |
| UPC | 749173470356 |
| Type | 5" Vortex for Marble |
| Attachment | 20 mm Quad Drive |
| Thread | 20 mm arbor (requires BAH-5/8 or AAH-20 adapter) |
| Recommended For | Flush / intricate cutting on marble and softer stones |
| Packaged Weight | 0.40 lbs |
| Package Dimensions | 8.5" x 6.75" x 0.5" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
| Property | Detail |
|---|---|
| Drive Pattern | 20 mm Quad Drive (4-Hole) |
| Adapter Required | BAH-5/8 (5/8"-11) or AAH-20 (M14 / 20 mm) |
| Operation | Wet or Dry (wet preferred) |
| Country of Origin | Japan |
What is the difference between the FCD and FCM blades?
FCD blades use a sintered diamond bond for granite and engineered stone. The FCM blade uses an electroplated bond optimized for marble and softer stones. Running the FCM on granite will dull the diamonds and end blade life almost immediately.
Can the Vortex mount directly on my grinder?
No. The countersunk drive holes require an Alpha Quad Drive adapter — BAH-5/8 for 5/8"-11 spindles or AAH-20 for 20 mm / M14 spindles.
Is wet or dry cutting better?
Wet cutting is preferred — it extends blade life and keeps harmful respirable silica dust out of the air.
What jobs is the Vortex designed for?
Flush cutting, 90-degree inside corners, sink-bowl cut-outs and curved or intricate shapes that a standard rim or segmented blade cannot perform cleanly.
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.
