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Scotch-Brite™ Diamond Wheel, 645DC

  • Removes and finishes thermal spray parts in one step with Ra in the 12-16 range
  • Available in 12”, 6” and 3” diameters and in multiple thicknesses
  • Provides a consistently fine, burr-free finish
Overall Width (Imperial)
Overall Diameter (Imperial)
Center Hole Diameter (Imperial)
Micron Grade
Products Available
Available options:
 Overall Width (Imperial), Overall Diameter (Imperial), Center Hole Diameter (Imperial), Max RPM and Micron Grade
All Options
Attribute Name
Abrasive Material
Center Hole Diameter (Imperial)
0.375 in, 1 in, 5 in
Center Hole Diameter (Metric)
127 mm, 25.4 mm, 9.525 mm
Form Type
For Use On
Carbide thermal spray, Ceramics
15100, 1906, 2200, 4500, 6000
Micron Grade
125 μm
Overall Diameter (Imperial)
12 in, 3 in, 6 in
Overall Diameter (Metric)
152.4 mm, 304.8 mm, 76.2 mm, 152.4 mm, 304.8 mm, 76.2 mm
Overall Thickness (Metric)
12.7 mm, 19.05 mm, 25.4 mm
Overall Width (Imperial)
0.5 in, 0.75 in, 1 in
Overall Width (Metric)
12.7 mm, 19.05 mm, 25.4 mm
Product Form
Thickness (Imperial)
0.5 in, 0.75 in, 1 in
Product Details
  • Removes and finishes thermal spray parts in one step with Ra in the 12-16 range
  • Available in 12”, 6” and 3” diameters and in multiple thicknesses
  • Provides a consistently fine, burr-free finish

Scotch-Brite™ Diamond Wheel, 645DC is a unique surface conditioning wheel containing diamond mineral for removal and pre-polishing of extra-hard materials such as carbide thermal spray and ceramics.

Made to Handle Hard-to-Grind Materials
Scotch-Brite™ Diamond Wheel, 645DC provides significant process improvements in the grinding and finishing of thermal spray and other hard-to-grind substrates. And it’s not only tough – its diamond mineral abrasive provides a consistently fine, burr-free finish throughout the life of the wheel.

Discover the Scotch-Brite™ Advantage
Nonwoven technology makes Scotch-Brite™ abrasives unique. Abrasive mineral is interspersed on synthetic fibers using resin — creating an open web construction. Spaces between the fibers permit excess material to escape, so the mineral does not become worn down by debris. It keeps the mineral cutting sharper longer, enhancing cut performance and increasing abrasive service life. The spring-like nature of the fibers works well on contours and responds to subtleties on the surface. Its responsive design effectively removes unwanted burrs, soils and contaminants without ruining the base material, so you get a consistent and uniform finish — part after part.

Typical Applications

  • Composites
  • Carbon fiber
  • Thermal spray
  • Hard-to-grind surfaces

Customer Reviews
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Large Volume Order

If you are considering a large purchase of this or other 3M Abrasive products our inside sales team is ready to help by providing additional information and options that our industrial customers typically seek when making abrasive procurement decisions. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we’ll do our best to prove that we should be your abrasive supplier of choice.

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