Designed for aggressive concrete stock removal as well as coatings, glues, mastics, and other floor covering adhesives. PCDs and carbides can be used with all National planetary grinder machines. Remove heavy stock, adhesive, thin set, and epoxies

Designed for aggressive concrete stock removal as well as coatings, glues, mastics, and other floor covering adhesives. PCDs and carbides can be used with all National planetary grinder machines. Removes heavy stock, adhesive,thin set, and epoxies

Designed for aggressive concrete stock removal as well as coatings, glues, mastics, and other floor covering adhesives. PCDs and carbides can be used with all National planetary grinder machines. Removes heavy stock, adhesive, thin set, and epoxies

Designed for aggressive concrete stock removal as well as coatings, glues, mastics, and other floor covering adhesives. PCDs and carbides can be used with all National planetary grinder machines. Removes coatings, glues, thin set, and thin mastics

50 Grit: Prep concrete for reapplication and polishing. Used primarily in light industrial and residential applications for concrete grinding and profiling as well as sealer and top coat removal. Provide excellent surface profiles for new coatings, epoxies, or stains. Also create exceptional profiles for concrete preparation and restoration prior to polishing concrete. Brazed trapezoids can be used with all National planetary grinders.

30 Grit: Remove sealers and preps concrete for polishing. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

50 Grit: Create a "broom finish" on soft concrete surfaces; first stage to polishing concrete. Used primarily in industrial applications for medium to aggressive concrete grinding and profiling as well as sealer and top coat removal. Perfect for concrete preparation and restoration prior to concrete polishing. In addition, brazed diamonds effortlessly remove stains and imperfections from exterior wood decking while simultaneously profiling wood for receiving new stains and/or sealers. These polishing pads are for use with all National planetary grinders.

30 Grit: Remove various coatings, and profiles on HARD concrete only. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

100 Grit: Create a "broom finish" on soft concrete surfaces; first stage to polishing concrete. Used primarily in industrial applications for medium to aggressive concrete grinding and profiling as well as sealer and top coat removal. Perfect for concrete preparation and restoration prior to concrete polishing. In addition, brazed diamonds effortlessly remove stains and imperfections from exterior wood decking while simultaneously profiling wood for receiving new stains and/or sealers. These polishing pads are for use with all National planetary grinders.

16 Grit: Remove paint, stain, and sealers; preps concrete for reapplication. Used primarily in light industrial and residential applications for concrete grinding and profiling as well as sealer and top coat removal. Provide excellent surface profiles for new coatings, epoxies, or stains. Also create exceptional profiles for concrete preparation and restoration prior to polishing concrete. Brazed trapezoids can be used with all National planetary grinders.

30 Grit: Remove various coatings, and profiles on SOFT concrete only. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

30 Grit: Prep concrete for reapplication and polishing. Used primarily in light industrial and residential applications for concrete grinding and profiling as well as sealer and top coat removal. Provide excellent surface profiles for new coatings, epoxies, or stains. Also create exceptional profiles for concrete preparation and restoration prior to polishing concrete. Brazed trapezoids can be used with all National planetary grinders.

3 Grit: Remove thin epoxy, paint, adhesives and sealers. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

30 Grit: Prep high-/moderate-density concrete for reapplication. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

16 Grit: Remove epoxy as well as heavy and light sealers. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

100 Grit: Prep concrete for polishing. Used primarily in light industrial and residential applications for concrete grinding and profiling as well as sealer and top coat removal. Provide excellent surface profiles for new coatings, epoxies, or stains. Also create exceptional profiles for concrete preparation and restoration prior to polishing concrete. Brazed trapezoids can be used with all National planetary grinders.

16 Grit: Remove various coatings, and profiles on HARD concrete only. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

50 Grit: Prep concrete for polishing. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

12 Grit: Remove thin epoxy, paint, adhesives and sealers. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

30 Grit: Remove light sealers. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

16 Grit: Remove thin epoxy, paint, stain, adhesives, and heavy sealers. Used primarily in industrial applications for medium to aggressive concrete grinding and profiling as well as sealer and top coat removal. Perfect for concrete preparation and restoration prior to concrete polishing. In addition, brazed diamonds effortlessly remove stains and imperfections from exterior wood decking while simultaneously profiling wood for receiving new stains and/or sealers. These polishing pads are for use with all National planetary grinders.

16 Grit: Remove thin epoxy, paint, adhesives and sealers. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

30 Grit: Remove adhesives, heavy and light sealers. Used primarily in industrial applications for medium to aggressive concrete grinding and profiling as well as sealer and top coat removal. Perfect for concrete preparation and restoration prior to concrete polishing. In addition, brazed diamonds effortlessly remove stains and imperfections from exterior wood decking while simultaneously profiling wood for receiving new stains and/or sealers. These polishing pads are for use with all National planetary grinders.

120 Grit: Prep concrete for polishing. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

25 Grit: Extremely aggressive coating removal with supersoft matrix for hard concrete or heavy cure and seal treatments, perfect for breaking surface tension. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

16 Grit: Remove various coatings, and profiles on SOFT concrete only. 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 and epoxies, or preparing concrete for polishing. Metal bond diamonds can be used with all National planetary and passive planetary grinders.

3000 Grit: Follow 9267-1500 to create a "mirror" polished concrete. Used for polishing concrete to various finishes and shines. Resin bond. Available in escalating grits. These polishing pads are for use with all National planetary grinders.

800 Grit: Follow 9267-400 to create a "shine" polished concrete. Used for polishing concrete to various finishes and shines. Resin bond. Available in escalating grits. These polishing pads are for use with all National planetary grinders.

50 Grit: Achieve a "no reflection" polished concrete. Used for polishing concrete to various finishes and shines. Resin bond. Available in escalating grits. These polishing pads are for use with all National planetary grinders.

1500 Grit: Follow 9267-800 to create a "high shine" polished concrete. Used for polishing concrete to various finishes and shines. Resin bond. Available in escalating grits. These polishing pads are for use with all National planetary grinders.

100 Grit: Follow 9267-50 to create a "little reflection" polished concrete. Used for polishing concrete to various finishes and shines. Resin bond. Available in escalating grits. These polishing pads are for use with all National planetary grinders.

200 Grit: Follow 9267-100 to create a "moderate reflection" polished concrete. Used for polishing concrete to various finishes and shines. Resin bond. Available in escalating grits. These polishing pads are for use with all National planetary grinders.

400 Grit: Follow 9267-200 to create a "satin reflection" polished concrete. Used for polishing concrete to various finishes and shines. Resin bond. Available in escalating grits. These polishing pads are for use with all National planetary grinders.

Designed for aggressive concrete stock removal as well as coatings, glues, mastics, and other floor covering adhesives. PCDs and carbides can be used with all National planetary grinder machines. Use to attach the above tooling to National's grinders

Designed for aggressive concrete stock removal as well as coatings, glues, mastics, and other floor covering adhesives. PCDs and carbides can be used with all National planetary grinder machines. Use to attach tooling to the above holder

The deluxe Helix Grind and Scrape Plate is the most versatile prepping plate in the industry. This magnetic tooling system converts from agressive grinding and scraping to passive planetary for diamond grinding, carbide/PCD, polishing, and sanding. The Morflex couplers allow the plate to follow the contour of the floor. 

Unlike other mineral hardness testing tools, the 8270 is made of metals and alloys of hardness values equal to 2 through 9 on the Mohs hardness scale, so they can be easily ground to sharp points that will not break off. Set includes 8 points, streak plate for testing color, hardness plates (3.5 and 5.5), magnet for detecting magnetic rock, grindstone to keep points sharp, hardness tables, and instructions, all in a compact wooden case.