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Abrasives - Rail Tested
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Flap Discs

Type 29 Flap Discs, Finishing Touch
Works great on manganese!


  Abrasive flap discs will save you time and money by eliminating the need to switch from a type 27 grinding wheel to a resin fiber disc. Our type 29 flap disc with angled flaps will allow you to put more abrasive grain to your work area while providing you with superior stock removal and long life.

ZA: Main application - Stainless Steel, high tension alloys
Secondary application - Ferrous and non-ferrous metals
Other major advantages:
No backing pad required
Rapid stock removal with excellent finish in one operation
Type 29 configuration allows maximum use of cloth
Lower noise level
Reduced clogging and glazing
Cooler grinding - less burning
Easier control - less tiring to use
Fiberglass backing wears with abrasive cloth and will not scratch, mar, or discolor work piece
Constant finish throughout its long life
FLAP WHEEL 4-1/2" DIA. 7/8" ARBOR T29 ZA 40
Part No. RRT-36624
Price: $4.02   
Shipping Weight:1 lbs



CGW Flap Discs

Zirconia Flap Discs

Offers maximum cutting capacity, strong edge stability, cool cutting with light pressure and long life.


RRT-42322: Z3 Regular Disc

RRT-42362: Z3 XL Disc

Premium Zirconia Alumina grain with a poly/cotton heat treated backing. The poly/cotton combination provides low stretch and strength for the high Zirconia concentration that Z3 contains. Fastest grain removal in the marketplace for carbon based steels (26% more than the competition) and second best after CGW Z-Stainless discs on stainless steels, while offering excellent life.

Contaminate-free. For working on contoured and edge work. Flaps are angled at 8 degrees for greater surface contact and aggressive use. Best used at 15° - 25° angle. XL requires high output angle grinders for best results. Recommended for aggressive use and heavy duty applications.

Diameter: 4 1/2″
Arbor Hole Size: 7/8"
Grit: 40 (Medium)
29 – Conical disc
Right angle grinder
Max Operating Speed: 13,300 RPM
Material: Zirconia
Made In:

Flap Disc XL. 4-1/2" x 7/8" Z3 TS9 XL 40 Grit - 10 Per Box
Part No. RRT-42362
Price: $44.40   
Shipping Weight:4 lbs
Flap Disc Reg. 4-1/2" x 7/8" Z3 40 Grit - 10 Per Box
Part No. RRT-43222
Price: $36.00   
Shipping Weight:4 lbs

Ceramic Flap Discs

Ceramic flap discs are designed to last longer than zirconia flap discs.


RRT-42442: C3 Regular Disc

Polyester backing material for longer working life. Ceramic grain provides Contaminate-Free results; stainless steel won't rust. Flaps are compressed and compacted at a 4 degree for edge strength. XL requires high output angle grinders for best results.

For working on rough edge work. Flaps are compressed at a 4 degree angle for flap edge strengh. Best used at 5° - 20° angle. Suitable For edge grinding. Steel and stainless and other heat sensitive materials.

Diameter: 4 1/2'
Arbor Hole Size: 7/8″
Thickness: XL
Grit: 40 (Medium)
Max Operating Speed: 13,300 RPM
Material: Ceramic
Use: Right angle grinder
Made In: USA
Quantity: 10

Flap Disc C3. 4-1/2" x 7/8" CE XL 40 Grit - 10 Per Box
Part No. RRT-42442
Price: $69.83   
Shipping Weight:4 lbs


Type 27 Depressed Center Grinding Wheels

Type 27 grinding wheels are formulated to deliver the highest productivity and performance, whether it be beveling, weld, or edge grinding operations.


To be used with Metal & Stainless Steel

  • Zirconia grain is sharper, cuts faster, and lasts longer than aluminum oxide grain.
  • T-grade bond for fast cutting and longer life
  • Recommended for steel, cast iron, and stainless steel.
Grinding, Type 27 - 4-1/2" x 1/4" x 7/8" - 1 Box
Part No. RRT-35624
Price: $100.26   
25 Per BoxShipping Weight:10 lbs


Premium grinding wheel
Long life - harder bond
Ceramic grain
Main application - Ferrous metals (structural steel, iron, welds, etc.)

GRINDING WHEEL 4-1/2"DIA. X 1/4" X 7/8" T27 METAL
Part No. RRT-24477
Price: $1.62   
Shipping Weight:1 lbs
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