CGW 42364 4-1/2" X 7/8" Type 29 60-Grit XL Z3 Zirconia Flap Disc

The CGW 42364 4-1/2" x 7/8" Type 29 60-Grit XL Z3 Zirconia Flap Disc is designed for efficient, aggressive material removal on steel surfaces. This flap disc combines premium zirconia alumina grain with a poly/cotton backing to deliver both durability and a refined finish. The zirconia concentration supports higher stock removal rates, making it well-suited for heavy-duty grinding tasks where faster material removal is needed without sacrificing control.

Construction features a Type 29 configuration, which provides an angled grinding surface that can help blend and smooth welds or contoured profiles. The XL design implies extended life compared to standard discs, with the active grinding aid helping to maintain cutting action with light pressure and cooler operation. These attributes are intended to reduce heat buildup during prolonged grinding, potentially lowering heat-related distortion on parts when used as directed.

For practical use, this disc is rated for up to 13,300 RPM and fits a 7/8" arbor/shank, matching common right-angle grinders used in fabrication, maintenance, and metalworking environments. The packaging lists a single disc per unit with ten discs per box, enabling convenient stocking for maintenance workflows. When selecting this disc, ensure compatibility with your grinder’s speed rating and flange dimensions, and use appropriate safety gear to manage dust and debris generated during heavy grinding tasks.

Features:

• Premium Zirconia Alumina grain on poly/cotton backing for durability and finish
• High stock removal with zirconia concentration
• Fastest stock removal in the marketplace for steel applications
• Active grinding aid for cool cutting with light pressure
• Type 29, 60 grit for aggressive material removal
• 4-1/2" diameter with 7/8" arbor/shank