Product Specification
4-1/2" x 4" NONWOVEN SURFACE CONDITIONING DRUM
The Benchmark Abrasives 4-1/2" x 4" Nonwoven Surface Conditioning Drum is built for controlled metal finishing where consistency and surface quality matter more than aggressive stock removal. Its flexible nonwoven construction smooths, blends, and refines surfaces while helping minimize gouging, making it ideal for light oxidation cleanup, scratch blending, satin finishing, and final-stage conditioning before polishing or coating.
The wide 4" working face covers flat and contoured surfaces efficiently, helping reduce the number of passes needed on larger components. Available in 60, 120, 240, 320, 400, and 600 grit, this drum provides a broad finishing progression from more aggressive surface cleanup through very fine refinement when a smoother, more uniform finish is required.
Product Specifications
| Specification |
Details |
| Diameter |
4-1/2" |
| Width |
4" |
| Material |
Nonwoven Surface Conditioning Web |
| Mounting |
Keyway |
| Available Grits |
60, 120, 240, 320, 400, 600 |
| Maximum Speed |
4,000 RPM |
| Use |
Dry Only |
| Quantity |
1 Drum |
Features
-
Flexible nonwoven construction provides controlled blending and refinement with less aggressive cutting than coated-abrasive sanding drums.
- Helps smooth and blend surfaces while reducing the risk of gouging during finishing work.
- Designed for light oxidation removal, scratch blending, satin finishing, and surface refinement.
-
Wide 4" working face covers larger flat and contoured areas efficiently.
- Available in 60, 120, 240, 320, 400, and 600 grit for progressive finishing from coarser cleanup through very fine refinement.
- Helps bridge the gap between abrasive sanding and final polishing or coating preparation.
- Designed for compatible portable surface-finishing and drum-sanding machines using the appropriate keyed mounting setup.
Applications & Performance
Designed for finishing operations where controlled surface refinement is more important than heavy stock removal.
- Light oxidation and surface cleanup
- Scratch blending
- Satin finishing
- Surface conditioning
- Blending fabrication and machining marks
- Refining surfaces after sanding or grinding
- Preparing surfaces for polishing
- Preparing surfaces for coating or final finishing
- Restoring or creating a more uniform directional finish
Materials include:
- Steel
- Stainless steel
- Cast iron
- Copper
- Wood
- Fiberglass
- Plastic
- Hard rubber
- Stone
For stainless steel work, keep abrasives used on stainless separate from abrasives previously used on carbon steel to reduce the risk of iron contamination and rust spotting.
Because nonwoven construction and density also influence cutting action and finish, grit number alone should not be treated as an exact predictor of the final surface. Test the selected grit on a sample when matching an existing finish.
Machine Compatibility
Designed for portable surface finishing machines, linear grinders, burnishers, contouring grinders, and drum sanding machines.
Compatible examples include:
-
Eastwood® Contour SCT® (21145)
-
HERCULES® HE68 Surface Conditioning Tool (70979)
-
Metabo® SE 17-200 RT with the appropriate keyed drum arbor
An adapter or additional mounting hardware may be required. Use a setup that securely holds a 4-1/2" diameter x 4" wide drum, allows proper guard clearance, and operates at or below 4,000 RPM.
Safety Tips
- Never exceed the drum's maximum speed of 4,000 RPM. Maximum RPM is a safety limit, not a recommended finishing speed.
- Use dry only.
- Start with light pressure and allow the nonwoven material to work. Excessive pressure can deform the web, generate unnecessary heat, and shorten drum life.
- Avoid dwelling in one area, especially on heat-sensitive workpieces.
- Disconnect the machine from its power source before installing, removing, or inspecting the drum.
- Confirm that the drum is properly seated and securely retained before operation.
- Stop immediately if abnormal vibration occurs and inspect the drum, mounting hardware, and setup before continuing.
- Keep machine guards and auxiliary handles installed as specified by the tool manufacturer.
- Wear appropriate eye, hearing, respiratory, and hand protection for the material and application.
- Secure the workpiece and keep loose clothing, hair, and hands away from rotating components.
- Do not use these wide sanding drums on electric drills.
