Alpha® Eclipse Q High-Performance Dry Flush-Cutting BladeThe Alpha® Eclipse Q is a high-performance turbo blade engineered for flush cutting and 90-degree inside-corner work on tile, brick, block, concrete, slate and natural stone — including granite. An 8mm tall diamond layer delivers long blade life and consistent, chip-free cutting on common building materials. The Eclipse Q is paired with the Alpha® Quad Drive or Flange Adapter system so it can run safely on most high-speed angle grinders found in stone and construction shops.Features Specially designed for flush cutting and 90° inside corners 8mm tall diamond layer for extended blade life Smooth, chip-free performance on medium-to-soft granite (also cuts hard varieties) Available 5", 6", 7" and 8" with 20mm Quad Drive, 7/8" Quad Drive or flanged 8-hole mount Wet- or dry-cuttable — cutting wet extends life and controls silica dust Requires Alpha Quad Drive or Flange Adapter for high-speed angle grinders .dst-accordion { margin-top: 25px; border: 1px solid #FDDCC5; border-radius: 6px; overflow: hidden; } .dst-accordion-item { border-bottom: 1px solid #FDDCC5; } .dst-accordion-item:last-child { border-bottom: none; } .dst-accordion-toggle { display: none; } .dst-accordion-label { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; cursor: pointer; font-size: 17px; font-weight: 700; color: #231F20; background: #fff; transition: background 0.2s; } .dst-accordion-label:hover { background: #FFF3EB; } .dst-accordion-label::after { content: '+'; font-size: 22px; font-weight: 700; color: #F15C22; transition: transform 0.3s; } .dst-accordion-toggle:checked + .dst-accordion-label { background: #FFF3EB; } .dst-accordion-toggle:checked + .dst-accordion-label::after { content: '\2212'; } .dst-accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; padding: 0 20px; background: #fff; } .dst-accordion-toggle:checked ~ .dst-accordion-content { max-height: 5000px; padding: 15px 20px 20px; } Models / Part Numbers Part No. Size Thickness Max RPM Type UPC DEQ005 5" 2.1mm 12,200 20mm Quad Drive 749173460555 DEQ578 5" 2.1mm 12,200 7/8" Quad Drive 749173461767 DEQ006 6" 2.1mm 10,100 20mm Quad Drive 749173460562 DEQ678 6" 2.1mm 10,100 7/8" Quad Drive 749173461774 DEQ007 7" 2.3mm 8,400 20mm Quad Drive 749173460579 DEQ008 8" 2.3mm 7,400 20mm Flange (8 holes) 749173460586 How to Use Confirm the blade arbor (20mm Quad Drive, 7/8" Quad Drive, or 20mm 8-hole flange) matches the Alpha adapter on your grinder. Mount the blade with the proper Quad Drive (BAH/AAH) or Flange Adapter — never run the Eclipse Q without an adapter. Check the grinder's max RPM is at or below the blade's rated speed (12,200 RPM for 5", 10,100 RPM for 6", 8,400 RPM for 7", 7,400 RPM for 8"). Make light passes for flush cuts and 90° inside corners; let the blade do the work to avoid chipping. For best dust control and longer life, cut wet whenever the substrate and grinder allow it. Do not use the Eclipse Q for groove cutting — use the Alpha® Groove Cutter for that application. Specifications by Variant 5" — 20mm Quad Drive — DEQ005 Part No. DEQ005 UPC 749173460555 Size 5" Type 20mm Quad Drive Recommended For Flush cutting on tile, brick, block, concrete, slate and natural stone (incl. granite) Packaged Weight 0.40 lbs Package Dimensions 5.5" x 5" x 0.25" Commodity Code 8202.91.0000 Country of Origin Japan 6" — 20mm Quad Drive — DEQ006 Part No. DEQ006 UPC 749173460562 Size 6" Type 20mm Quad Drive Recommended For Flush cutting on tile, brick, block, concrete, slate and natural stone (incl. granite) Packaged Weight 0.60 lbs Package Dimensions 6" x 5.5" x 0.25" Commodity Code 8202.91.0000 Country of Origin Japan 7" — 20mm Quad Drive — DEQ007 Part No. DEQ007 UPC 749173460579 Size 7" Type 20mm Quad Drive Recommended For Flush cutting on tile, brick, block, concrete, slate and natural stone (incl. granite) 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" — 20mm Flange (8 holes) — DEQ008 Part No. DEQ008 UPC 749173460586 Size 8" Type 20mm Flange (8 holes) Recommended For Flush cutting on tile, brick, block, concrete, slate and natural stone (incl. granite) Packaged Weight 1.00 lbs Package Dimensions 8.5" x 8.5" x 0.25" Commodity Code 8202.91.0000 Country of Origin Japan 5" — 7/8" Quad Drive — DEQ578 Part No. DEQ578 UPC 749173461767 Size 5" Type 7/8" Quad Drive Recommended For Flush cutting on tile, brick, block, concrete, slate and natural stone (incl. granite) Packaged Weight 0.40 lbs Package Dimensions 5.5" x 5" x 0.25" Commodity Code 8202.91.0000 Country of Origin Japan 6" — 7/8" Quad Drive — DEQ678 Part No. DEQ678 UPC 749173461774 Size 6" Type 7/8" Quad Drive Recommended For Flush cutting on tile, brick, block, concrete, slate and natural stone (incl. granite) Packaged Weight 0.60 lbs Package Dimensions 6" x 5.5" x 0.25" Commodity Code 8202.91.0000 Country of Origin Japan Common Specifications Property Detail Application Flush cutting and 90° inside corners on stone, masonry and tile Diamond Layer Height 8mm Cutting Mode Dry or wet Recommended Tool High-speed angle grinder with Alpha Quad Drive / Flange Adapter Country of Origin Japan Related & Companion Products Alpha® Quad Adapter (BAH-M10Q) Alpha® Vortex Intricate & Flush Cutting Blade Alpha® Groove Cutter for Granite Alpha® Katana Blade FAQs What materials can the Eclipse Q cut?Tile, brick, block, concrete, slate and natural stone including granite. It is best suited to medium-to-soft granite, but will also cut harder varieties.Can I run the Eclipse Q wet?Yes. Wet cutting generally extends blade life and keeps harmful silica dust out of the air.Why must I use a Quad Drive or Flange Adapter?The Eclipse Q is engineered to run on the Alpha Quad Drive / Flange Adapter system. It must always be paired with the proper adapter — never mount it directly to a grinder spindle.What is the diamond layer height?8mm, which gives the blade extended service life compared to standard turbo blades.Can I use the Eclipse Q for groove cutting?No. Use the Alpha® Groove Cutter for grooves. The Eclipse Q is built for flush cuts and 90° inside corners.Can I mount it on a polisher?No. Polisher RPM is too low; use a high-speed angle grinder rated at or above the blade's max RPM. Videos Angle Grinder w/Eclipse Q on Granite Documentation 📄 Eclipse Q Flyer 📄 Eclipse Q — How to Use 📄 Eclipse Q — Helpful Hints 📄 Blade Selection Guide 📄 Cutting System Overview 📄 Diamond Tools Cutting Blade SDS ⚠ WARNING: This product can expose you to chemicals including Cobalt, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Always wear appropriate PPE.
