CGW 35621 4-1/2" X 1/4" X 5/8"-11 A24-R Type 27 24-Grit Ultra Aluminum Oxide Grinding Wheel

The CGW 35621 is a 4-1/2 inch diameter, 1/4 inch thick grinding wheel designed for Angle Grinder use, featuring a 5/8-11 arbor and Type 27 status for depressed-center mounting. This wheel uses an ultra aluminum oxide grain, which is a common choice for grinding and material stock removal on metal surfaces, offering a balance of performance and cost. The R-grade bond is formulated to provide longer wheel life while maintaining effective grinding action, enabling sustained material removal without frequent wheel changes.

Constructed to a 24 grit size, the wheel emphasizes aggressive stock removal suitable for shaping and smoothing tasks on ferrous metals and similar materials encountered in maintenance and fabrication environments. The combination of grain type, grit, and bond hardness influences how quickly the wheel cuts, how it wears, and how it handles heat generation under typical grinding conditions. The wheel is intended for use on compatible grinders with the standard 5/8-11 arbor and should be mounted and run per the manufacturer’s recommended RPM to avoid rotor imbalance or wear. The 13,300 RPM rating provides a general capability range; operators should verify compatibility with their tool and workpiece to prevent over-speeding or underutilization.

In practice, this CGW Type 27 wheel is suited to surface grinding, beveling, or shaping tasks where a depressed-center profile is advantageous for accessing angled contours and tight spaces. When selecting replacement wheels, confirm the A24-R designation indicates a particular bond and grain construction intended to balance longevity with effective material removal. Packaged as an individual wheel, it is typically used in workflows that manage consumable wear and periodic resupply; ensure proper storage to prevent moisture absorption and maintain wheel balance before mounting.

Features:

• High Quality Aluminum Oxide Grain
• R-grade bond for longer life and excellent stock removal
• Type 27 wheel for right-angle grinding applications
• 4-1/2" diameter with 1/4" thickness
• 5/8-11″ arbor size for common grinders
• Grit 24 balances aggression and finish
• Designed for durable, long-lasting grinding performance