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Three pink fiber discs 4-1/2 inch 36 grit for angle grinders

Ali Indistries Inc

Ali Indistries Inc Gator 4-1/2 In. 36 Grit Fiber Disc (3-Pack) 3073

SKU CH-GVKZ-462EE

Abrasive fiber discs for angle grinders, 36 grit for fast stock removal and surface cleaning

  • Product typeGrinders
  • Color and finishPink
  • Heavy-duty aluminum oxide for aggressive material removal
  • 36 grit coarse abrasive tackles heavy stock quickly
  • 4-1/2 inch diameter fits standard angle grinders
  • 7/8 inch arbor mounts on common backer pads
  • 20,000 rpm maximum speed for high-speed grinding

4-1/2 Inch 36 Grit Fiber Discs

This three-pack supplies heavy-duty aluminum oxide resin fiber discs for angle grinders. They suit metalworkers and fabricators who need aggressive stock removal on steel or iron. The coarse 36 grit cuts quickly during weld grinding, deburring, and surface preparation tasks. Each disc mounts on a standard backer pad for immediate use.

Thermals Noise and Power Draw

Friction generates heat during high-speed grinding, so keep the workpiece moving to avoid discoloration. The discs run at up to 20000 rpm, producing noticeable whine and vibration typical of coarse abrasive media. Operators should wear hearing protection and gloves during extended sessions. No electrical power is drawn by the discs themselves.

7/8 Inch Arbor and Pink Finish

The 7/8 inch center hole fits common angle grinder spindles without adapters. Pink color coding identifies the 36 grit grade at a glance in a mixed abrasive inventory. Resin-bonded fiber backing resists tearing when pressure is applied on edge or flat surfaces. Discs wear evenly when used with a compatible backer pad at recommended speeds.

How it compares

Measured against everything we stock in Industrial Machines & Equipment, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 60% of the 17 comparable items (median $4.99).

Specifications

Product
Brand nameAli Ind.
Product typeGrinders
Color and finishPink

Questions about this item

How do I fit the 7/8" arbor onto my angle grinder, and what step do people forget?

Mount the disc on a compatible backer pad first, then secure the pad onto the grinder spindle; the step often missed is tightening the pad nut to the grinder's specified torque so the disc cannot shift at speed.

When will these 36 grit fiber discs need replacing?

Replace a disc once the pink aluminum oxide surface dulls, glazes over, or the resin bond wears thin enough that material removal drops noticeably; each disc in the three-pack is consumed at a different rate depending on pressure and workpiece.

What limit appears first if I run a disc continuously at 20,000 rpm?

Heat buildup in the resin bond is the first limit; sustained maximum speed softens the adhesive, causing grain shedding and potential disc disintegration before the abrasive itself is fully spent.

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