Pferd 67363 Flap Disc 40 Grit Zirconia Alumina Type 27

Product Description

The PFERD 67363 is a Type 27 zirconia alumina flap disc designed for aggressive material removal on metal surfaces. Built on a fiberglass backing plate, it carries a coarse 40-grit abrasive cloth arranged in overlapping flaps around a 5/8-11 arbor hole. At 5 inches in diameter, this disc mounts directly to standard angle grinders and delivers consistent stock removal across flat and contoured workpieces. The zirconia alumina abrasive self-sharpens under pressure, maintaining cut rate throughout the life of the disc. Rated to 12,200 RPM, it suits most 5-inch angle grinders used in fabrication and maintenance applications. The fiberglass backing provides rigidity while keeping disc weight low at 0.4 pounds per unit.

The PFERD 67363 is suited for grinding and blending operations on stainless steel and carbon steel. Typical applications include weld dressing, surface preparation, and deburring in metal fabrication shops, structural steel work, and maintenance environments. The Type 27 flat profile is preferred when working on flat stock, inside corners, and anywhere a low-profile disc gives the operator better control. The SGP series designation indicates the disc is trimmable, allowing the operator to expose fresh abrasive when flap edges become glazed during extended use.

Key Features

• Type 27 flat profile for flush grinding on flat surfaces and inside corners
• Zirconia alumina abrasive self-sharpens under load for sustained cut rate
• Fiberglass backing plate provides rigidity without added weight
• 5/8-11 arbor mount fits standard angle grinders directly
• Trimmable flap design allows refresh of abrasive surface during use
• Rated to 12,200 RPM for use with most 5-inch angle grinders

Compatibility

Designed for use with 5-inch angle grinders equipped with a 5/8-11 threaded spindle. Suitable for grinding and blending stainless steel and carbon steel workpieces.

Installation Notes

Installation and removal of flap discs should be performed by a qualified operator following the grinder manufacturer's mounting instructions and ANSI B7.1 safety guidelines. Confirm the grinder's maximum rated RPM meets or exceeds the disc rating of 12,200 RPM before mounting. Inspect the disc for damage before each use and never operate a cracked or delaminated disc. Always use the appropriate guard and appropriate personal protective equipment when operating angle grinders.