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12C321 - 2-Inch x 3-Inch Type 18 Grinding Plug 5/8-11 Arbor

Packaging: 1 in a pack
$33.00/ea

Usually ships within 3-5 business days

SKU: 12C321 Categories: ,

OVERVIEW

Heavy-Duty Abrasive Grinding Plug for Industrial Applications

The Walter Surface Technologies 12C321 is a high-performance Type 18 grinding plug designed for the rigors of industrial metalworking. Measuring 2 inches in diameter and 3 inches in length, this abrasive tool is engineered to tackle heavy stock removal in confined spaces where traditional grinding wheels cannot reach. It features a coarse 24-grit aluminum oxide composition, making it exceptionally effective for grinding steel and stainless steel components.

One of the standout features of this product is its integrated 5/8"-11 internal threaded arbor. This design allows the plug to be mounted directly onto the spindle of compatible angle grinders and die grinders, bypassing the need for separate collets, chucks, or adapters. This direct mounting system not only saves setup time but also ensures a more secure connection, reducing run-out and vibration during high-speed operation. The result is a smoother grinding experience that enhances operator control and safety.

Ideally suited for foundries, fabrication shops, and maintenance departments, this grinding plug excels at smoothing rough castings, removing flashing, cleaning internal pipe diameters, and blending weld seams in corners. The resinoid bond structure provides excellent structural integrity, allowing the plug to maintain its shape and cutting aggression throughout its service life. With a maximum speed rating of 15,800 RPM, it delivers rapid material removal rates, helping to optimize workflow efficiency in demanding production environments.

Key Technical Benefits

  • Direct Compatibility: The 5/8"-11 thread fits standard North American grinder spindles instantly.
  • Aggressive Removal: Coarse grit aluminum oxide grain quickly removes metal from ferrous and non-ferrous workpieces.
  • Vibration Control: Precision balancing minimizes tool chatter, protecting both the machine and the operator.
  • Versatile Application: Effective on mild steel, stainless steel, and cast iron surfaces.
Additional Information
Packaging Description:1 per each, 1 in a pack
Brand:Walter
Arbor (in):5/8"
Used to Grind:Steel or Stainless
Grit:24
Dimensions:2" x 3"
Thread Size:5/8"-11
Shape:Type 18 (Plug)
Grain Type:Aluminum Oxide
Max RPM:15800

INCLUDED

  • 1x 2" x 3" Grinding Plug with 5/8"-11 Threaded Arbor

APPLICATIONS

  • Smoothing and cleaning rough castings
  • Deburring internal pipe diameters
  • Blending welds in corners and tight angles
  • Removing flashing and parting lines
  • General maintenance and repair on steel and stainless structures

FAQ

This grinding plug features a standard 5/8"-11 internal thread, allowing it to mount directly to most angle grinders and die grinders with matching spindles.

While it can grind aluminum, this plug is primarily designed for steel and stainless steel. Using it on aluminum may cause the abrasive to load up (clog) more quickly unless a lubricant or wax is used.

The maximum safe operating speed for this 2" x 3" plug is 15,800 RPM. Always ensure your tool does not exceed this rating.

No, the integrated 5/8"-11 thread means you do not need a collet or separate adapter. It screws directly onto the tool's spindle.

This plug typically features a coarse grit (around 24 grit) suitable for aggressive stock removal and shaping.

This specific dimension (flat end cylinder) is classified as a Type 18 plug. Type 16 and 17 are typically cone-shaped.

Always wear a face shield, safety glasses, heavy gloves, and hearing protection. Grinding plugs can throw sparks and debris in all directions.

CATALOGUE & SPEC SHEETS

Safety Data Sheet