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Alpha Professional Tools | SKU:
DA04AH
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Alpha Professional Tools Quad Dry Blade
Regular price
$55.22 USD
Unit price
Shipping calculated at checkout.
Pickup currently unavailable at Dynamic Stone Tools Warehouse (Manassas Park, VA)
Alpha Professional Tools | SKU:
DA04AH
Regular price
$55.22 USD
Unit price
Shipping calculated at checkout.
Description
Description
Alpha® Quad Dry Cutting Blade
The Alpha® Quad combines the performance of Alpha® Plus — our top-of-line diamond blade — with a unique flush-cutting core design. The Quad mounts on a high-speed angle grinder through a BAH or FAH Quad Drive adapter, letting fabricators flush-cut sinks, make true 90° inside corners, and clean up large-diameter saw marks on granite, marble, and engineered stone.
Features
- Designed for flush cutting and 90° inside-corner cleanup
- Best-in-class dry-cutting turbo blade; runs wet for even longer life
- Chip-free cuts on the most demanding stone applications
- Available in 4", 5", 6", 7", 8", 9", and 10" diameters
- Quad Drive arbor — requires BAH or FAH adapter (sold separately)
- 8 mm cutting-edge rim height
- Made in Japan
| Part No. | Diameter | Thickness | Max RPM | Arbor / Drive | UPC |
|---|---|---|---|---|---|
| DA04AH | 4" | 2.1 mm | 14,500 | 20 mm Quad Drive | 749173460128 |
| DA05SH | 5" | 2.1 mm | 12,200 | 20 mm Quad Drive | 749173460159 |
| DA06AH | 6" | 2.1 mm | 10,100 | 20 mm Quad Drive | 749173460173 |
| DA07AH | 7" | 2.3 mm | 8,400 | 20 mm Quad Drive | 749173460203 |
| DA08AH | 8" | 2.3 mm | 7,400 | 20 mm flange, 8-hole | 749173460227 |
| DA09AH | 9" | 2.5 mm | 6,600 | 20 mm flange, 8-hole | 749173460241 |
| DA11AH | 10" | 2.5 mm | 5,900 | 20 mm flange, 8-hole | 749173460272 |
- Install the correct BAH or FAH Quad Drive adapter on the angle-grinder spindle — do not mount the blade directly to the flange.
- Verify the grinder RPM is at or below the blade maximum (see Models chart).
- Make light scoring passes first, then full-depth cuts to minimize chipping.
- For inside 90° corners, finish the cut from the opposite face to eliminate over-run.
- Wet cutting is supported and extends blade life; always wet-cut when feasible to reduce silica dust.
- Re-dress the blade in a soft concrete block if it glazes and slows down.
4" — 20 mm Quad Drive (BAH/FAH adapter) — Dry flush-cutting blade — DA04AH
| Part No. | DA04AH |
| UPC | 749173460128 |
| Size | 4" |
| Type | Dry flush-cutting blade |
| Attachment | 20 mm Quad Drive (BAH/FAH adapter) |
| Max RPM | 14,500 |
| Recommended For | Flush cutting and 90° inside corners — angle grinder |
| Packaged Weight | 0.30 lbs |
| Package Dimensions | 5.25" x 4.5" x 0.25" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
5" — 20 mm Quad Drive (BAH/FAH adapter) — Dry flush-cutting blade — DA05SH
| Part No. | DA05SH |
| UPC | 749173460159 |
| Size | 5" |
| Type | Dry flush-cutting blade |
| Attachment | 20 mm Quad Drive (BAH/FAH adapter) |
| Max RPM | 12,200 |
| Recommended For | Flush cutting and 90° inside corners — angle grinder |
| Packaged Weight | 0.40 lbs |
| Package Dimensions | 6" x 5.5" x 0.25" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
6" — 20 mm Quad Drive (BAH/FAH adapter) — Dry flush-cutting blade — DA06AH
| Part No. | DA06AH |
| UPC | 749173460173 |
| Size | 6" |
| Type | Dry flush-cutting blade |
| Attachment | 20 mm Quad Drive (BAH/FAH adapter) |
| Max RPM | 10,100 |
| Recommended For | Flush cutting and 90° inside corners — angle grinder |
| Packaged Weight | 0.70 lbs |
| Package Dimensions | 7" x 6.5" x 0.25" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
7" — 20 mm Quad Drive (BAH/FAH adapter) — Dry flush-cutting blade — DA07AH
| Part No. | DA07AH |
| UPC | 749173460203 |
| Size | 7" |
| Type | Dry flush-cutting blade |
| Attachment | 20 mm Quad Drive (BAH/FAH adapter) |
| Max RPM | 8,400 |
| Recommended For | Flush cutting and 90° inside corners — angle grinder |
| Packaged Weight | 0.90 lbs |
| Package Dimensions | 7.5" x 7.5" x 0.25" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
8" — 20 mm flange, 8-hole (BAH/FAH adapter) — Dry flush-cutting blade — DA08AH
| Part No. | DA08AH |
| UPC | 749173460227 |
| Size | 8" |
| Type | Dry flush-cutting blade |
| Attachment | 20 mm flange, 8-hole (BAH/FAH adapter) |
| Max RPM | 7,400 |
| Recommended For | Flush cutting and 90° inside corners — angle grinder |
| Packaged Weight | 1.10 lbs |
| Package Dimensions | 8.5" x 8.5" x 0.25" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
9" — 20 mm flange, 8-hole (BAH/FAH adapter) — Dry flush-cutting blade — DA09AH
| Part No. | DA09AH |
| UPC | 749173460241 |
| Size | 9" |
| Type | Dry flush-cutting blade |
| Attachment | 20 mm flange, 8-hole (BAH/FAH adapter) |
| Max RPM | 6,600 |
| Recommended For | Flush cutting and 90° inside corners — angle grinder |
| Packaged Weight | 1.90 lbs |
| Package Dimensions | 10.5" x 9.5" x 0.25" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
10" — 20 mm flange, 8-hole (BAH/FAH adapter) — Dry flush-cutting blade — DA11AH
| Part No. | DA11AH |
| UPC | 749173460272 |
| Size | 10" |
| Type | Dry flush-cutting blade |
| Attachment | 20 mm flange, 8-hole (BAH/FAH adapter) |
| Max RPM | 5,900 |
| Recommended For | Flush cutting and 90° inside corners — angle grinder |
| Packaged Weight | 2.20 lbs |
| Package Dimensions | 10.5" x 10.5" x 0.25" |
| Commodity Code | 8202.91.0000 |
| Country of Origin | Japan |
| Property | Detail |
|---|---|
| Blade Type | Turbo-rim dry-cutting diamond (wet-rated) |
| Cutting Edge Rim Height | 8 mm |
| Drive | Quad Drive — requires BAH or FAH adapter |
| Adapter Thread (BAH-5/8, FAH-5/8) | 5/8"-11 |
| Best On | Granite (all classifications), marble, engineered stone |
| Cuts | Flush cuts and 90° inside corners |
| Country of Origin | Japan |
| Commodity Code | 8202.91.0000 |
What applications are Quad blades designed for?
Flush cutting and making true 90° inside corners on granite, marble, and engineered stone.
Can I use the Quad for groove cutting?
No. Use the Alpha® Groove Cutter with the Universal Safety Guard Kit for groove work.
Can I mount the Quad blade directly to my grinder flange?
No. The Quad has countersunk holes in the core and must be used with a BAH or FAH adapter.
Which granite classification is best?
The Quad performs across all classifications and is especially strong on hard granite.
Can the Quad be used wet?
Yes. Wet cutting increases blade life and helps keep silica dust out of the air.
What is the cutting-edge rim height?
8 mm.
What spindle thread do the BAH-5/8 and FAH-5/8 adapters fit?
5/8"-11 thread.
Can the Quad be used on a polisher?
No. Polisher RPMs are too slow for diamond cutting blades.
Quad Blade on Granite
⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.
