National Flooring Equipment

In the work?

Check out our resources for professional contractors

Grinding and Polishing Tooling

PCDs and Carbides

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.

Part NoDescription
9555

2-up PCD-Micro

9557

4-up PCD-Micro

9554

1-up PCD 1/2 round

9556

2-up PCD 1/2 round

7268-2

Carbides

9521

Carbide and tooling holder

9550

Screw

9500

Blanks

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

Part NoDescription
9508-16

16-grit full bar diamond insert

9508-16SB

16-grit full bar diamond insert

9508-30

30-grit full bar diamond insert

9508-30SB

30-grit full bar diamond insert

9507-6

3-grit half bar diamond insert

9507-12

12-grit half bar diamond insert

9507-16

16-grit half bar diamond insert

9507-16HB

16-grit half bar diamond insert

9507-30

30-grit half bar diamond insert

9507-30HB

30-grit half bar diamond insert

9510-30

30-grit profiling diamond inserts

9510-50

50-grit profiling diamond inserts

9510-120

120-grit profiling diamond inserts

9504-25

25-grit super soft, single bar diamond inserts

Brazed Trapezoid Diamonds

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.

Part NoDescription
9522-16

16-grit

9522-30

30-grit

9522-50

50-grit

9522-100

100-grit

5-Inch Brazed Diamonds

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.

Part NoDescription
9235-16

16-grit

9235-30

30-grit

9235-50

50-grit

9235-100

100-grit

5-Inch Polishing Pads

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.

Part NoDescription
9267-50

50-grit

9267-100

100-grit

9267-200

200-grit

9267-400

400-grit

9267-800

800-grit

9267-1500

1500-grit

9267-3000

3000-grit

402757 Helix® Grind and Scrape Plate

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

  • Fits the Helix
  • Rigid plate mount allows for aggressive grinding and scraping
  • Passive planetary tooling creates random scratch pattern
  • Polishes and sands without leaving swirl marks
  • Morflex couplers reduce the shock to the operator and the machine
  • Follows the contour of the floor for uniform operation in low spots
  • For use with machines large enough to accept a 16-inch plate with a standard 3¼-inch hub
  • Converts from grinding to scraping to polishing to sanding in seconds
  • Includes three satellite plates that are easily attachable/detachable with cotter pins
  • Has a sliding latch that makes the mounting/dismounting of the plate quick and easy

9292 Floating Head Assembly

Improve machine performance, reach low spots, and level high spots by following surface undulation.

  • Fits the 8274-4
  • Tooling flexes for a uniform and consistent scratch pattern
  • Tooling plates attach directly onto mounted floating assembly
  • Accommodates all magnetic tooling types, including carbides and PCDs, 5-inch resin polishing pads, 5-inch brazed diamond disks, magnetic diamond tooling, and brazed diamond trapezoids
  • Three assemblies required

8270 Concrete Hardness Tester

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.

73250 Tooling Holder Mounting Screw

73081 Helix® Safety Screw

73097 8274-4 Safety Screw

403978 Helix Clutch Plate

73214 Floating Isolator Assembly Mounting Screw

401882 Morflex coupler

GP Prep Package: Wedge for soft concrete

501020-HL
20 Grit, 2 Seg, Hard Bond, Left Hand

501020-HR
20 Grit, 2 Seg, Hard Bond, Right Hand

501040-HL
40 Grit, 2 Seg, Hard Bond, Left Hand

501040-HR
40 Grit, 2 Seg, Hard Bond, Right Hand

501070-HL
70 Grit, 2 Seg, Hard Bond, Left Hand

501070-HR
70 Grit, 2 Seg, Hard Bond, Right Hand

GP Prep Package: Wedge for medium concrete

501020-ML
20 Grit, 2 Seg, Medium Bond, Left Hand

501020-MR
20 Grit, 2 Seg, Medium Bond, Right Hand

501040-ML
40 Grit, 2 Seg, Medium Bond, Left Hand

501040-MR
40 Grit, 2 Seg, Medium, Bond, Right Hand

501070-ML
70 Grit, 2 Seg, Medium Bond, Left Hand

501070-MR
70 Grit, 2 Seg, Medium Bond, Right Hand

GP Prep Package: Wedge for hard concrete

501020-SL
20 Grit, 2 Seg, Soft Bond, Left Hand

501020-SR
20 Grit, 2 Seg, Soft Bond, Right Hand

501040-SL
40 Grit, 2 Seg, Soft Bond, Left Hand

501040-SR
40 Grit, 2 Seg, Soft Bond, Right Hand

501070-SL
70 Grit, 2 Seg, Soft Bond, Left Hand

501070-SR
70 Grit, 2 Seg, Soft Bond, Right Hand

GP Prep Package: Puck for soft concrete

501025-HP
25 Grit, 4 Seg, Hard Bond

501040-HP
40 Grit, 4 Seg, Hard Bond

501080-HP
80 Grit, 4 Seg, Hard Bond

GP Prep Package: Puck for medium concrete

501025-MP
25 Grit, 4 Seg, Medium Bond

501040-MP
40 Grit, 4 Seg, Medium Bond

501080-MP
80 Grit, 4 Seg, Medium Bond

GP Prep Package: Puck for hard concrete

501025-MP
25 Grit, 4 Seg, Medium Bond

501040-MP
40 Grit, 4 Seg, Medium Bond

501080-MP
80 Grit, 4 Seg, Medium Bond

GP Polishing Package: Soft Concrete

Metal Bond Diamonds
501000-H (24 Grit)
501111-H (40 Grit)
501222-H (80 Grit)
501333-H (150 Grit)

Resin Polishing Pads
501444 (100-200 Grit)
501555 (200-400 Grit)
501666 (400-800 Grit)
501777 (800-1500 Grit)
501888 (1800-3000 Grit)

GP Polishing Package: Medium Concrete

Metal Bond Diamonds
501000-M (24 Grit)
501111-M (40 Grit)
501222-M (80 Grit)
501333-M (150 Grit)

Resin Polishing Pads
501444 (100-200 Grit)
501555 (200-400 Grit)
501666 (400-800 Grit)
501777 (800-1500 Grit)
501888 (1800-3000 Grit)

GP Polishing Package: Hard Concrete

Metal Bond Diamonds
501000-S (24 Grit)
501111-S (40 Grit)
501222-S (80 Grit)
501333-S (150 Grit)

Resin Polishing Pads
501444 (100-200 Grit)
501555 (200-400 Grit)
501666 (400-800 Grit)
501777 (800-1500 Grit)
501888 (1800-3000 Grit)

GP Bonus Tooling

501030-2
25/30 Grit. 2 Seg

501016-10
16 Grit, 10 Seg

501030-10
30 Grit, 10 Seg

501925
Lippage Holder

501020-PCD
20 Grit, PCD

501000-PCD-L
Left Hand PCD, Rough Profile

501000-PCD-R
Right Hand PCD, Rough Profile

501926
Velcro Adapter

403232
Quick Change Tooling Plate

Cup Wheels

Industry-leading cup wheels come in various configurations and are ideal for coating removal, grinding high spots, and cleaning along walls. PCD wheels stay sharper longer under adverse conditions.

Part NoDescriptionSegmentThreadRPM
3419

7"

125/8-118500
3420-2

7"

247/8, 5/8 hole8500
3449

5"

97/8, 5/8 hole13,300
3450

5"

187/8, 5/8 hole13,300
3443 PCD

7"

247/8, 5/8 hole8500

Miscellaneous Hand Grinder Accessories

Part NoDescription
402254Spanner wrench for knockout cup wheels
402556Spanner wrench for threaded cup wheels

3432 and 3535 velcro attachments

5-inch Velcro Brazed Diamonds - Heavy Commercial

Part NoDescription
9235-16

16-grit

9235-30

30-grit

9235-50

50-grit

9235-100

100-grit

5-inch Velcro Concrete Polishing Pads

(Used in Sequential Order to Achieve Results)

Part NoDescription
9267-50

50-grit

9267-100

100-grit

9267-200

200-grit

9267-400

400-grit

9267-800

800-grit

9267-1500

1500-grit

9267-3000

3000-grit

3535 Velcro Attachments

Corner Brazed

Part NoDescription
9420-30

30-grit corner brazed

9420-50

50-grit corner brazed

9420-100

100-grit corner brazed

Corner Resin

Part NoDescription
9435-50

50-grit corner resin

9435-100

100-grit corner resin

9435-200

200-grit corner resin

9435-400

400-grit corner resin

9435-800

800-grit corner resin

9435-1500

1500-grit corner resin

9435-3000

3000-grit corner resin