CGW 45021 4-1/2" X 3/32" X 5/8"-11 Type 27 36-Grit White Aluminum Oxide Cutting & Notching Wheel

The CGW 45021 is a 4-1/2 inch Type 27 grinding wheel designed for cutting and notching operations on metal. With a thickness of 3/32 inch and an 5/8-11 arbor, this wheel is suited for right-angle grinder applications where a depressed center wheel can access contours and flat surfaces. The wheel uses white aluminum oxide as its grain, which provides a balance of cutting action and durability for general-purpose metal fabrication tasks.

The wheel’s grain is described as a high-quality friable mixture, which tends to wear in a way that sustains cutting efficiency through multiple passes. This behavior can help reduce the frequency of wheel dressing during sanding and notching operations while maintaining consistent material removal. The stated contaminant-free formulation—containing negligible iron, sulfur, and chlorine—supports rust-free and corrosion-free results on susceptible metal surfaces, making it suitable for various steel and alloy applications where cleanliness of the cut is important.

This product is packaged as individual wheels, with a box quantity of 10. The 13300 RPM rating indicates the maximum safe operating speed for this wheel under typical conditions. When selecting it for use, ensure the abrasive type, grit, and hardness are appropriate for the workpiece material and the depth of cut required. Proper safety practices, including compatible PPE and machine guards, should be followed to maximize control and minimize wheel wear or breakage during cutting and notching tasks.

Features:

• 4-1/2" diameter with 3/32" thickness
• 5/8"-11 arbor for common mounting
• 36 grit white aluminum oxide grain for efficient cutting
• Type 27 wheel designed for cut-notching operations
• Contaminant-free formulation minimizes rust and corrosion
• Friable grain for faster cutting and smoother finishes
• Hardness grade S provides stable performance