Cgw 42331 Zirconia Flap Disc 4.5 in T29 36 Grit 10 Pack

Product Description

The CGW 42331 is a Type 29 zirconia alumina flap disc designed for aggressive grinding and blending on metal surfaces. Built with Z3 USA-made premium zirconia grain, this disc delivers consistent stock removal and a longer service life compared to standard aluminum oxide flap discs. At 4.5 inches in diameter with a 5/8-11 threaded hub, it mounts directly to most angle grinders without an adapter. The 36-grit configuration makes it well-suited for heavy material removal, weld grinding, and surface preparation. Each box contains 10 discs. This product is installed and used by metal fabricators, welders, pipefitters, and maintenance technicians.

The CGW 42331 is used in residential fabrication shops, commercial metalworking environments, and industrial maintenance settings. The T29 conical shape allows the disc to contact the workpiece at an angle, increasing surface contact and making it effective on flat stock, structural steel, and pipe. The 36-grit cut is appropriate for initial weld bead removal, rust and scale removal, and edge preparation before welding or coating. The 5/8-11 arbor is the standard thread for most 4.5-inch angle grinders available in the North American market.

Key Features

• Z3 USA-made premium zirconia alumina abrasive grain for extended disc life and fast cutting action
• Type 29 conical profile maximizes surface contact on flat and curved workpieces
• 36-grit rating suited for aggressive stock removal, weld grinding, and scale removal
• 5/8-11 threaded hub fits most standard 4.5-inch angle grinders without an adapter
• Sold in a 10-disc box, reducing per-unit cost for regular shop use

Compatibility

Designed for use with 4.5-inch angle grinders equipped with a standard 5/8-11 threaded spindle. Suitable for grinding carbon steel, stainless steel, and other ferrous metals.

Installation Notes

Flap discs are installed and operated by metalworkers, welders, and fabricators using handheld angle grinders. Verify the grinder's maximum RPM rating meets or exceeds the disc's rated speed before mounting. Inspect the disc for damage before each use and discard any disc showing signs of delamination or cracking. Always wear appropriate PPE including face shield, gloves, and hearing protection during operation.

Technical Specifications

• Disc Diameter: 4.5 inches
• Arbor Size: 5/8-11
• Disc Type: T29 (Type 29 Conical)
• Abrasive Grain: Z3 Premium Zirconia Alumina
• Grit: 36
• Quantity per Box: 10
• Weight: 0.324 pounds
• UPC: 65533242331

Standard Information

• Brand: CGW
• Manufacturer Part Number: 42331