CGW 42341 4-1/2" X 7/8" Type 27 36-Grit XL Z3 Zirconia Flap Disc

The CGW 42341 4-1/2" x 7/8" Type 27 36-Grit XL Z3 Zirconia Flap Disc is designed for aggressive material removal on ferrous metals. This flap disc pairs a premium Zirconia Alumina grain with a durable poly/cotton backing to combine effective stock removal with a more consistent finish. The XL configuration adds extra flap coverage, which can contribute to higher material removal rates while maintaining control during grinding tasks. The zirconia composition sustains performance under higher temperatures, helping to sustain grinding efficiency in demanding applications.

Key construction features include the Type 27 configuration for contour grinding and leveling, a 4-1/2 inch diameter, and a 7/8 inch arbor/shank size. The disk is specified at 36 grit, a balance between material removal rate and surface finish, and it operates at up to 13,300 RPM. An active grinding aid is included to help maintain cooler cutting when light pressure is applied, which can mitigate heat buildup during extended grinding sessions and help preserve workpiece integrity.

Suitable uses include aggressive stock removal on steel and related metals where higher grit count and zirconia grain can deliver efficient material removal. When selecting this flap disc, ensure compatibility with standard 4-1/2 inch angle grinders that support a 7/8 inch arbor and Type 27 flat- or depressed-center grinding surfaces. This product is sold in box quantities of 10 discs, with each disc packaged individually, providing ready-to-use inventory for maintenance and fabrication workflows.

Features:

• Premium zirconia alumina grain on poly/cotton backing for durability and finish.
• High stock removal with zirconia concentration for steel applications.
• Fastest stock removal in the marketplace for steel applications (as stated in features).
• Active grinding aid promotes cool cutting under light pressure.
• Type 27 configuration for versatile grinding angles.
• 4-1/2 inch diameter with 7/8 inch arbor size.
• XL backing provides extended disc life and stability.