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Alpha Vextra Flat Diamond Grinding Discs
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At a Glance
Quick Decision Guide
Disc Size
4-1/2"
Grit
35
Arbor
7/8"
Maximum RPM
13,200
Recommended For
General Purpose
Primary Materials
Steel, Stainless Steel & Non-Ferrous Metals
Surface Removal
Rust, Burrs, Mill Scale, Paint, Epoxy & Adhesives
Construction
Vibration-Reducing Rubber Sandwich Design
Why Choose This Product
Key Benefits
Aggressive Grinding
Optimized diamond grits provide fast, consistent material removal
Flat Surface Coverage
Flat grinding design maximizes contact area and productivity
Coating Removal
Removes paint, epoxy, glue and adhesives during surface preparation
Clog Resistance
Clears rust, burrs and mill scale without quickly loading the grinding face
Long Service Life
Diamond abrasive construction reduces frequent disc replacement
Reduced Noise & Vibration
Rubber sandwich construction improves operating comfort
Spark Reduction
Designed for metal applications where reducing sparks is a priority
Multi-Material Use
Grinds metals, natural stone, quartz surfaces, wood and rubber
Product Information
Product Details
Specifications
Brand
Alpha®
Part Number
VDD4535
UPC
749173670541
Product Type
Flat Diamond Grinding Disc
Disc Size
4-1/2"
Grit
35
Arbor
7/8"
Maximum RPM
13,200
Recommended For
General Purpose
Primary Metal Applications
Steel, Stainless Steel & Non-Ferrous Metals
Additional Materials
Natural Stone, Engineered Stone/Quartz, Wood & Rubber
Surface Removal
Rust, Burrs, Mill Scale, Paint, Epoxy, Glues & Adhesives
Grinding Design
Optimized Diamond Grit & Layer Arrangement
Construction
Rubber Sandwich Construction
Grinding Position
Flat Grinding
Performance
Aggressive Grinding with Long Service Life
Vibration & Noise
Reduced by Rubber Sandwich Construction
Clog Resistance
Designed to Resist Clogging During Surface Removal
Spark Reduction
Designed for Applications Where Spark Reduction is a Priority
About This Product
Flat Diamond Grinding Disc for Metal Preparation
Alpha® Vextra Flat Grinding Discs are aggressive diamond grinder discs for steel, stainless steel, and non-ferrous metals. Their optimized diamond grit and layer arrangement provides consistent grinding performance and long service life, while the flat grinding design maximizes surface coverage for efficient material removal.
Remove Rust, Mill Scale, Paint and Adhesives
Vextra removes rust, burrs, mill scale, and paint from metal surfaces without quickly clogging the grinding face. The disc also removes epoxy, glue, and adhesives, making it useful for surface preparation and coating removal applications where conventional grinder wheels may require frequent replacement.
Reduced Grinding Noise and Vibration
A rubber sandwich construction reduces disc weight, vibration, and operating noise while maintaining aggressive grinding performance. This design helps reduce operator fatigue and limits downtime associated with frequently replacing conventional abrasive discs.
Multiple Sizes, Grits and Arbor Configurations
Vextra Flat Grinding Discs are available in 4-1/2", 5", and 7" diameters with 35, 50, and 80 grit options. Depending on the selected model, discs have either a 7/8" arbor or a 5/8"-11 zinc hub. In addition to metal, Vextra can grind natural stone, engineered stone and quartz surfaces, wood, and rubber.
Product Resources
Documentation & Downloads
Common Questions
Frequently Asked Questions
What materials can the Alpha Vextra Flat Grinding Disc grind?
Vextra is designed for steel, stainless steel, and non-ferrous metals. It can also grind natural stone, engineered stone and quartz surfaces, wood, and rubber.
What can the Vextra Flat Disc remove from a surface?
The disc removes rust, burrs, mill scale, paint, epoxy, glue, and adhesives. Its grinding face is designed to resist clogging during material and coating removal.
What sizes and arbor configurations are available?
Vextra discs are available in 4-1/2", 5", and 7" diameters. Depending on the selected size and grit, models are offered with a 7/8" arbor or a 5/8"-11 zinc hub.
What grit options are available?
The Vextra Flat Disc is available in 35, 50, and 80 grit. Available grit and arbor combinations vary by disc diameter.
What is the maximum RPM for each Vextra disc size?
The 4-1/2" discs are rated for a maximum of 13,200 RPM, the 5" discs for 12,200 RPM, and the 7" discs for 8,400 RPM.
How does the Vextra reduce grinding noise and vibration?
The disc uses a rubber sandwich construction that reduces weight, vibration, and operating noise while helping limit operator fatigue.
Can the Vextra Grinding Disc be used flat?
Yes. Vextra is specifically designed for flat grinding, which maximizes grinder wheel coverage for improved productivity and surface preparation efficiency.
Is the Alpha Vextra Flat Disc spark-free?
No. Alpha describes Vextra as a grinding disc for applications where spark reduction is a priority, but it should not be considered spark-free. Follow all site-specific requirements for metal grinding and Ex Zone work.