08B510 - Walter HP 5-Inch Type 27 Grinding Wheel for Steel (25-Pack)

Technical Overview of the Walter HP Type 27 Grinding Wheel

The Walter 08B510 is a premium-grade abrasive solution designed specifically for heavy-duty industrial grinding applications. Part of the renowned HP (High Performance) series, this wheel is engineered to deliver exceptional material removal rates on steel substrates while maintaining a long service life. The wheel features a standard Type 27 depressed center geometry, which allows for a grinding angle of 15 to 30 degrees, optimizing the contact area for aggressive stock removal and weld leveling.

Physically, the wheel measures 5 inches in diameter with a thickness of 1/4 inch, providing a rigid and durable platform for high-torque grinding operations. The 7/8-inch unthreaded arbor is the industry standard for 5-inch angle grinders, ensuring broad compatibility with tools from major manufacturers. The abrasive matrix is composed of high-quality Aluminum Oxide grain, bonded with a specialized resin system designated as A-24-HPS. This coarse 24-grit formulation is specifically tuned for ferrous metals, preventing the wheel from loading or glazing over during extended use on carbon steel.

Safety and structural integrity are paramount in the design of the HP series. The wheel is reinforced to withstand the lateral forces and high rotational speeds encountered in industrial environments. While the manufacturer data highlights the performance characteristics of the HP line—such as fast metal removal and extra-long life—it is crucial to note the specific configuration of this SKU. Unlike spin-on hub variants, the 08B510 utilizes a standard 7/8" bore, requiring the use of the grinder's locking nut for securement. This configuration is preferred in many shops for its cost-effectiveness and compatibility with standard mounting hardware.

Industrial procurement specialists should note that this product is supplied in a package quantity of 25, making it an ideal stock item for high-volume fabrication shops, shipyards, and structural steel facilities. The consistent density and balance of Walter wheels reduce vibration, thereby protecting both the power tool's bearings and the operator's joints from long-term stress. When specified for MRO applications, the 08B510 offers a reliable baseline for performance metrics, often outlasting generic alternatives and reducing the total cost of grinding per foot of weld.