Benchmark Abrasives 3" green zirconia quick change discs are built for aggressive metal removal, weld cleanup, deburring, and blending where heat and loading can become a concern. The larger 3" diameter gives you more working coverage than a 2" disc, making it a strong choice for broader welds, fabricated surfaces, and general metalworking while still retaining the convenience of a quick change system.
These discs use zirconia grain with a grinding aid to help reduce heat and loading during demanding metalworking applications. Available from 24 through 120 grit, including 100 grit and a mixed pack, they provide a practical range for moving from heavy grinding into blending and finer surface refinement.
Quantity: 25 Discs
Backing pad sold separately
Product Specifications
Specification
Details
Disc Diameter
3"
Abrasive Material
Zirconia
Grinding Aid
Yes
Backing Material
X-Weight Cloth
Attachment Type
Type R Quick Change
Available Grits
24, 36, 40, 60, 80, 100, 120
Mixed Grit Pack
5 each of 24, 40, 60, 80 & 120 grit
Maximum RPM
25,000
Use
Dry Only
Required Holder
Matching 3" Type R backing pad; sold separately
Product Features
Zirconia grain with grinding aid for demanding metalworking applications
Grinding aid helps reduce heat and loading during use
Durable X-weight cloth backing for aggressive handheld grinding
Larger 3" size for faster coverage on broader work areas
24–120 grit range, including 100 grit, for aggressive removal through finer blending
Type R quick change attachment for fast disc changes between steps
Materials & Applications
Common Materials
Steel
Stainless Steel
Cast Iron
Titanium
Nickel
Wrought Iron
Copper
Fiberglass
Plastic
Hard Rubber
Wood
Stone
Common Applications
Weld cleanup
Weld blending
Stock removal
Deburring
Edge cleanup
Surface preparation
Rust and scale cleanup
Blending surface imperfections
Use lower grit numbers for faster, more aggressive material removal. Move to progressively finer grits as the job shifts from heavy grinding into blending and surface refinement.
Machine Compatibility
Designed for rotary quick change sanding tools using a matching 3" Type R backing pad.
Recommended Benchmark Abrasives Tools
Benchmark Abrasives Right Angle Pneumatic Quick Change Sander
Compatible with the Benchmark Abrasives BMT-QC90 Right Angle and BMT-QCPG Pistol Grip Quick Change Sanders when fitted with a matching 3" Type R holder and operated within the disc, holder, and tool speed ratings.
Safety Tips
Inspect the disc and holder before use
Fully secure the disc to the Type R holder before operating
Never exceed the maximum RPM of the lowest-rated component
Follow the tool manufacturer's operating and safety instructions
Frequently Asked Questions
Use a matching 3" Type R holder. Compatible choices include the Benchmark Abrasives BMT-QC90 Right Angle and BMT-QCPG Pistol Grip Quick Change Sanders. Other verified examples include Milwaukee 2984-20 with a suitable 1/4" shank holder and Dynabrade 48530, 48531, or 48532 with the matching 51346 Type R pad. Always confirm the RPM rating of the complete assembly.
The grinding aid helps reduce heat and loading during demanding metalworking applications.
They are well suited for weld cleanup, stock removal, deburring, and blending on demanding metal applications where heat and loading are concerns.
Choose green zirconia when you want the cutting characteristics of zirconia along with the benefit of a grinding aid to help control heat and loading. Standard zirconia remains a strong option for aggressive general metal removal.
A 3" disc covers more surface area and is better suited for broader welds and larger work areas. A 2" disc is generally preferable when tighter access and more localized control are the priority.
Use a matching 3" Type R quick change backing pad. The backing pad is sold separately.
No. These discs are specified for dry use only.
The 25-piece mixed pack contains 5 discs each of 24, 40, 60, 80, and 120 grit.
No. 25,000 RPM is the maximum rated speed. Never exceed the RPM rating of the lowest-rated component in the disc, holder, and tool assembly.
No. The disc uses a Type R quick change attachment. A separate mandrel or holder may use a 1/4" tool shank, which is a different connection.
Benchmark Abrasives 3" green zirconia quick change discs are built for aggressive metal removal, weld cleanup, deburring, and blending where heat and loading can become a concern. The larger 3" diameter gives you more working coverage than a 2" disc, making it a strong choice for broader welds, fabricated surfaces, and general metalworking while still retaining the convenience of a quick change system.
These discs use zirconia grain with a grinding aid to help reduce heat and loading during demanding metalworking applications. Available from 24 through 120 grit, including 100 grit and a mixed pack, they provide a practical range for moving from heavy grinding into blending and finer surface refinement.
Quantity: 25 Discs
Backing pad sold separately
Product Specifications
Specification
Details
Disc Diameter
3"
Abrasive Material
Zirconia
Grinding Aid
Yes
Backing Material
X-Weight Cloth
Attachment Type
Type R Quick Change
Available Grits
24, 36, 40, 60, 80, 100, 120
Mixed Grit Pack
5 each of 24, 40, 60, 80 & 120 grit
Maximum RPM
25,000
Use
Dry Only
Required Holder
Matching 3" Type R backing pad; sold separately
Product Features
Zirconia grain with grinding aid for demanding metalworking applications
Grinding aid helps reduce heat and loading during use
Durable X-weight cloth backing for aggressive handheld grinding
Larger 3" size for faster coverage on broader work areas
24–120 grit range, including 100 grit, for aggressive removal through finer blending
Type R quick change attachment for fast disc changes between steps
Materials & Applications
Common Materials
Steel
Stainless Steel
Cast Iron
Titanium
Nickel
Wrought Iron
Copper
Fiberglass
Plastic
Hard Rubber
Wood
Stone
Common Applications
Weld cleanup
Weld blending
Stock removal
Deburring
Edge cleanup
Surface preparation
Rust and scale cleanup
Blending surface imperfections
Use lower grit numbers for faster, more aggressive material removal. Move to progressively finer grits as the job shifts from heavy grinding into blending and surface refinement.
Machine Compatibility
Designed for rotary quick change sanding tools using a matching 3" Type R backing pad.
Recommended Benchmark Abrasives Tools
Benchmark Abrasives Right Angle Pneumatic Quick Change Sander
Compatible with the Benchmark Abrasives BMT-QC90 Right Angle and BMT-QCPG Pistol Grip Quick Change Sanders when fitted with a matching 3" Type R holder and operated within the disc, holder, and tool speed ratings.
Safety Tips
Inspect the disc and holder before use
Fully secure the disc to the Type R holder before operating
Never exceed the maximum RPM of the lowest-rated component
Follow the tool manufacturer's operating and safety instructions
Frequently Asked Questions
Use a matching 3" Type R holder. Compatible choices include the Benchmark Abrasives BMT-QC90 Right Angle and BMT-QCPG Pistol Grip Quick Change Sanders. Other verified examples include Milwaukee 2984-20 with a suitable 1/4" shank holder and Dynabrade 48530, 48531, or 48532 with the matching 51346 Type R pad. Always confirm the RPM rating of the complete assembly.
The grinding aid helps reduce heat and loading during demanding metalworking applications.
They are well suited for weld cleanup, stock removal, deburring, and blending on demanding metal applications where heat and loading are concerns.
Choose green zirconia when you want the cutting characteristics of zirconia along with the benefit of a grinding aid to help control heat and loading. Standard zirconia remains a strong option for aggressive general metal removal.
A 3" disc covers more surface area and is better suited for broader welds and larger work areas. A 2" disc is generally preferable when tighter access and more localized control are the priority.
Use a matching 3" Type R quick change backing pad. The backing pad is sold separately.
No. These discs are specified for dry use only.
The 25-piece mixed pack contains 5 discs each of 24, 40, 60, 80, and 120 grit.
No. 25,000 RPM is the maximum rated speed. Never exceed the RPM rating of the lowest-rated component in the disc, holder, and tool assembly.
No. The disc uses a Type R quick change attachment. A separate mandrel or holder may use a 1/4" tool shank, which is a different connection.
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