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Metal Bond Diamonds

Used for light, medium, and aggressive concrete grinding and profiling as well as sealer and top coat removal. Can be used for both residential and industrial applications. Perfect for leveling concrete high spots and repairing imperfections as well as creating the perfect profile for accepting new coatings, epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National’s planetary and passive planetary grinders.

Part NoDescriptionBest For...
9508-16

16-grit full bar diamond insert

Removes epoxy as well as heavy and light sealers
9508-16SB

16-grit full bar diamond insert

Removes various coatings, and profiles on HARD concrete only
9508-30

30-grit full bar diamond insert

Removes light sealers
9508-30SB

30-grit full bar diamond insert

Removes various coatings, and profiles on HARD concrete only
9507-6

3-grit half bar diamond insert

Removes thin epoxy, paint, adhesives, and sealers
9507-12

12-grit half bar diamond insert

Removes thin epoxy, paint, adhesives, and sealers
9507-16

16-grit half bar diamond insert

Removes thin epoxy, paint, adhesives, and sealers
9507-16HB

16-grit half bar diamond insert

Removes various coatings, and profiles SOFT concrete only.
9507-30

30-grit half bar diamond insert

Removes sealers and preps concrete for polishing
9507-30HB

30-grit half bar diamond insert

Removes various coatings, and profiles SOFT concrete only.
9510-30

30-grit profiling diamond inserts

Preps high/moderate density concrete for reapplication
9510-50

50-grit profiling diamond inserts

Preps concrete for polishing
9510-120

120-grit profiling diamond inserts

Preps concrete for polishing
9504-25

25-grit super segment diamond inserts

Extremely aggressive coating removal with supersoft matrix for hard concrete or heavy cure and seal treatments