Alpha Q-Cut Blades
Alpha Q-Cut Blades are engineered for superior performance in cutting quartzite, granite, marble, and engineered stone. Available in sizes compatible with most tub and tile saws as well as Alpha® Wet Stone Cutters, the Q-Cut is the first diamond blade developed specifically for quartzite and hard granites.
Tile installers and shops will appreciate its ability to handle the toughest natural stone tiles with speed and efficiency. The advanced rim design minimizes chipping and breakage, delivering clean, precise, and safe cuts. Cost-effective, easy to use, and built for demanding applications, Alpha Q-Cut is the top choice for professional tile contractors and fabrication shops.
Q-Cut Blades Main Features
- Formulated To Cut Hard Tiles Such As Quartzite/Granite
- Tile Installer’s Choice for Stone & Porcelain Tile
- Designed for Fast, Precision Chip-Free Cutting
- Perfect for 2cm Porcelain Paver Tile
- Wet Use Only (Except QZ4578, QZ0578 & QZ1201)
Alpha Q-Cut Blades videos
Making a V40 Laminated Bullnose Edge
Alpha Q-Cut Blades Specifications
| Part No. | Size | Thickness | Maximum RPM | Type | Arbor(s) | For Use On |
|---|---|---|---|---|---|---|
| QZ4578 | 4-1/2″ | 1.6mm | 13,200 | Wet/Dry Use | 7/8″, 20mm | Stone Cutter/Angle Grinder |
| QZ0578 | 5″ | 1.6mm | 12,200 | Wet/Dry Use | 7/8″ | Stone Cutter/Angle Grinder |
| QZ0658 | 6″ | 1.4mm | 10,100 | Wet Use | 7/8″, 5/8″, ◊ | Stone Cutter/Tile Saw |
| QZ0758 | 7″ | 1.6mm | 8,400 | Wet Use | 5/8″ | Tile Saw |
| QZ0858 | 8″ | 1.6mm | 7,400 | Wet Use | 5/8″ | Tile Saw |
| QZ0978 | 9″ | 2.1mm | 6,600 | Wet Use | 7/8″, Quad-W5 | Electric Angle Grinder/ Demolition Saw |
| QZ1058 | 10″ | 2.0mm | 5,900 | Wet Use | 5/8″ | Tile Saw |
| QZ1001 | 10″ | 2.0mm | 5,900 | Wet Use | 1″, 5/8″ | Portable Rail Saw |
| QZ1201 | 12″ | 2.1mm | 6,200 | Wet/Dry Use | 1″ | Portable Rail Saw |
Q-Cut Blades Related Documents
| Document Type | Link |
|---|---|
| Safety Data Sheet | Diamond Tools Cutting Blade |
| Reference | Q-Cut_HelpfulHints |
| Flyer | Blade Selection Guide |
| Flyer | Porcelain Paver Tiles flyer |
| Flyer | Q-Cut flyer |
| Flyer | Hardscape Blade Chart |
| Flyer | New From Alpha 2025 |
| Flyer | Cutting System Overview |
Additional Information
| PartNo | UPC Code | Pkg. Weight (lbs) | Package Dimensions | Commodity Code | Country Of Origin |
|---|---|---|---|---|---|
| QZ4578 | 749173461897 | 0.30 | 5in x 5in x 0.25in | 8202.91.0000 | Japan |
| QZ0578 | 749173461903 | 0.30 | 6in x 5.5in x 0.25in | 8202.91.0000 | Japan |
| QZ0658 | 749173461910 | 0.40 | 7.5in x 7.5in x 0.25in | 8202.91.0000 | Japan |
| QZ0758 | 749173461958 | 0.70 | 6.5in x 6in x 0.25in | 8202.91.0000 | Japan |
| QZ0858 | 749173461927 | 0.80 | 9in x 8.5in x 0.25in | 8202.91.0000 | Japan |
| QZ1058 | 749173461934 | 1.50 | 10.5in x 10.5in x 0.25in | 8202.91.0000 | Japan |
| QZ1001 | 749173462177 | 1.50 | 10.5in x 10.5in x 0.25in | 8202.91.0000 | Japan |
| QZ1201 | 749173462511 | 12.5in x 12.5in x 0.25in | 8202.91.0000 | Japan |
Frequently Asked Questions
Which way do I install the blade on my tool?
The blade direction is printed on the front of the blade. Install the blade so that the blade will follow this direction. If the front of the blade is no longer legible, a directional arrow is embossed into the back of the blade. As a last resort, examine the diamonds. The bond tail behind each diamond should be pointing the opposite direction of blade rotation. If the blade is installed incorrectly, the bond tails will reverse direction, which may cause some premature wear.
What materials can I cut with the Alpha® Q-Cut blade?
The Q-Cut wet blade series is primarily designed for granite, marble and engineered stone slabs or tiles. The Q-Cut 4-1/2” and 5” blades are designed for porcelain and ceramic tiles, which can be used in either wet or dry cutting applications.
Can I cut Onyx with the Alpha® Q-Cut blade?
No. We don’t recommend cutting Onyx using our Q-Cut blades due to the aggressive cutting action, diamond grit size and turbo rim style of these blades. We recommend the Alpha® Vetro blade designed for the glass application for cutting Onyx. It has a continuous rim with finer diamonds to minimize the chipping of the edge.
Can I use the Alpha® Q-Cut blade for dry applications?
Yes and No. The Q-Cut 4-1/2” and 5” blade can be used either wet or dry, since the diamond matrix is designed for use on hand power tools such as our Alpha® AWS-110 or AWS-125 and high-speed angle grinders. However, the larger Q-Cut blades must be used in wet at all times.
The speed of my cut is slowing down. What can I do to improve it?
The diamonds are rounding over or glazing causing the blade to lose its cutting ability. You need to re-dress the blade using a soft abrasive material such as a dressing stone or a concrete block.
What is the maximum RPM at which I can use the Alpha® Q-Cut blades?
See specifications chart.
What is the arbor size of the Q-Cut blades?
See specifications chart.
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