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Marka
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Size
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Grit
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Arbor
| Marka: Alpha |
| Marka: Alpha |
The Alpha® Vextra™ flat diamond grinding disc is engineered for grinding steel, stainless steel and non-ferrous metals where spark mitigation matters — including explosive (Ex) zones. Its sandwich construction with rubber damping makes the disc light, reduces vibration and noise, and minimizes operator fatigue. Optimized diamond grit and layer arrangement deliver long life and consistent performance — users typically report 50–60× the life of conventional abrasives. This listing is VDD4535: 4-1/2" diameter, #35 grit, 7/8" arbor for high-speed angle grinders.
| Part No. | Diameter | Grit | Arbor | Max RPM | UPC |
|---|---|---|---|---|---|
| VDD4535 | 4-1/2" | #35 | 7/8" | 13,200 RPM | 749173670541 |
| VDD453H | 4-1/2" | #35 | 5/8"-11 | 13,200 RPM | 749173670558 |
| VDD455H | 4-1/2" | #50 | 5/8"-11 | 13,200 RPM | 749173670572 |
| VDD4580 | 4-1/2" | #80 | 7/8" | 13,200 RPM | 749173670664 |
| VDD458H | 4-1/2" | #80 | 5/8"-11 | 13,200 RPM | 749173670671 |
| VDD5035 | 5" | #35 | 7/8" | 12,200 RPM | 749173670220 |
| VDD503H | 5" | #35 | 5/8"-11 | 12,200 RPM | 749173670237 |
| VDD5050 | 5" | #50 | 7/8" | 12,200 RPM | 749173670244 |
| VDD505H | 5" | #50 | 5/8"-11 | 12,200 RPM | 749173670251 |
| VDD5080 | 5" | #80 | 7/8" | 12,200 RPM | 749173670589 |
| VDD508H | 5" | #80 | 5/8"-11 | 12,200 RPM | 749173670596 |
| VDD7035 | 7" | #35 | 7/8" | 8,400 RPM | 749173670602 |
| VDD703H | 7" | #35 | 5/8"-11 | 8,400 RPM | 749173670619 |
| VDD7050 | 7" | #50 | 7/8" | 8,400 RPM | 749173670626 |
| VDD705H | 7" | #50 | 5/8"-11 | 8,400 RPM | 749173670633 |
| VDD7080 | 7" | #80 | 7/8" | 8,400 RPM | 749173670640 |
| VDD708H | 7" | #80 | 5/8"-11 | 8,400 RPM | 749173670657 |
| VDD4550 | 4-1/2" | #50 | 7/8" | 13,200 RPM | 749173670565 |
| Part No. | VDD4535 |
| UPC | 749173670541 |
| Type | Vextra Flat Diamond Grinding Disc 4-1/2", #35 grit, 7/8" arbor |
| Max RPM | 13,200 RPM |
| Packaged Weight | 0.50 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD453H |
| UPC | 749173670558 |
| Type | Vextra Flat Diamond Grinding Disc 4-1/2", #35 grit, 5/8"-11 arbor |
| Max RPM | 13,200 RPM |
| Packaged Weight | 0.60 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD455H |
| UPC | 749173670572 |
| Type | Vextra Flat Diamond Grinding Disc 4-1/2", #50 grit, 5/8"-11 arbor |
| Max RPM | 13,200 RPM |
| Packaged Weight | 0.60 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD4580 |
| UPC | 749173670664 |
| Type | Vextra Flat Diamond Grinding Disc 4-1/2", #80 grit, 7/8" arbor |
| Max RPM | 13,200 RPM |
| Packaged Weight | 0.50 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD458H |
| UPC | 749173670671 |
| Type | Vextra Flat Diamond Grinding Disc 4-1/2", #80 grit, 5/8"-11 arbor |
| Max RPM | 13,200 RPM |
| Packaged Weight | 0.60 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD5035 |
| UPC | 749173670220 |
| Type | Vextra Flat Diamond Grinding Disc 5", #35 grit, 7/8" arbor |
| Max RPM | 12,200 RPM |
| Packaged Weight | 0.55 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD503H |
| UPC | 749173670237 |
| Type | Vextra Flat Diamond Grinding Disc 5", #35 grit, 5/8"-11 arbor |
| Max RPM | 12,200 RPM |
| Packaged Weight | 0.65 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD5050 |
| UPC | 749173670244 |
| Type | Vextra Flat Diamond Grinding Disc 5", #50 grit, 7/8" arbor |
| Max RPM | 12,200 RPM |
| Packaged Weight | 0.55 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD505H |
| UPC | 749173670251 |
| Type | Vextra Flat Diamond Grinding Disc 5", #50 grit, 5/8"-11 arbor |
| Max RPM | 12,200 RPM |
| Packaged Weight | 0.65 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD5080 |
| UPC | 749173670589 |
| Type | Vextra Flat Diamond Grinding Disc 5", #80 grit, 7/8" arbor |
| Max RPM | 12,200 RPM |
| Packaged Weight | 0.55 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD508H |
| UPC | 749173670596 |
| Type | Vextra Flat Diamond Grinding Disc 5", #80 grit, 5/8"-11 arbor |
| Max RPM | 12,200 RPM |
| Packaged Weight | 0.65 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD7035 |
| UPC | 749173670602 |
| Type | Vextra Flat Diamond Grinding Disc 7", #35 grit, 7/8" arbor |
| Max RPM | 8,400 RPM |
| Packaged Weight | 1.15 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD703H |
| UPC | 749173670619 |
| Type | Vextra Flat Diamond Grinding Disc 7", #35 grit, 5/8"-11 arbor |
| Max RPM | 8,400 RPM |
| Packaged Weight | 1.25 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD7050 |
| UPC | 749173670626 |
| Type | Vextra Flat Diamond Grinding Disc 7", #50 grit, 7/8" arbor |
| Max RPM | 8,400 RPM |
| Packaged Weight | 1.15 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD705H |
| UPC | 749173670633 |
| Type | Vextra Flat Diamond Grinding Disc 7", #50 grit, 5/8"-11 arbor |
| Max RPM | 8,400 RPM |
| Packaged Weight | 1.25 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD7080 |
| UPC | 749173670640 |
| Type | Vextra Flat Diamond Grinding Disc 7", #80 grit, 7/8" arbor |
| Max RPM | 8,400 RPM |
| Packaged Weight | 1.15 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Part No. | VDD708H |
| UPC | 749173670657 |
| Type | Vextra Flat Diamond Grinding Disc 7", #80 grit, 5/8"-11 arbor |
| Max RPM | 8,400 RPM |
| Packaged Weight | 1.25 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Korea |
| Property | Detail |
|---|---|
| Type | Flat diamond grinding disc, sandwich construction with rubber damping |
| Primary Materials | Steel, stainless steel, non-ferrous metals; also stone, quartz, wood, rubber |
| Grits Available | #35 (coarse), #50 (medium), #80 (fine) |
| Diameters Available | 4-1/2", 5", 7" |
| Arbors Available | 7/8" or 5/8"-11 zinc hub |
| Use | High-speed angle grinder, sander, or polisher; dry or wet |
| Country of Origin | Korea |
Life depends on application and material, but users typically see 50–60× the life of conventional abrasive discs.
Yes — the Vextra Flat Diamond Grinding Disc is designed to run wet as well as dry. Feed water at the disc face to suppress dust.
Alpha offers the Ecoguard G retrofit dust shroud for most 4-1/2" and 5" industrial grinders. Combined with a HEPA vacuum, the Vextra runs virtually dust-free. Note: some metal powders are combustible — verify material safety before vacuum collection.
High-speed angle grinders, sanders and polishers. Use the tool's original flange and lock nut on 7/8"-arbor models, or thread the 5/8"-11 zinc-hub models directly onto the spindle.
A square arbor suitable for the Ecogrinder is available upon request.
#35 for aggressive stock removal (this listing). #50 for general-purpose grinding. #80 for finer finish work.
Vextra Flat Grinding Discs
⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.