Walter Surface Technologies 11T642 Grinding Wheel 4.5in 60G

Product Description

The WALTER SURFACE TECHNOLOGIES 11T642 is a depressed center grinding wheel rated for Type 27 and Type 42 angle grinder applications. At 4.5 inches in diameter and 1/32 inch thick, it is a thin-profile cutoff and grinding wheel bonded with a resinoid bond and reinforced for high-stress use. The abrasive material is zirconia alumina at 60 grit, which delivers aggressive stock removal while maintaining edge integrity on hard metals. The 7/8 inch arbor hole fits standard angle grinder spindles. Maximum operating speed is 13,300 RPM. This wheel is suited for fabrication shops, maintenance crews, and metal trade professionals who need reliable performance on a variety of ferrous and thin-gauge materials.

This wheel is designed for use with angle grinders in applications involving stainless steel, carbon steel, and thin gauge metal. The Type 27 and Type 42 dual designation allows both flat and depressed-center grinding configurations depending on the grinder guard and backing flange setup. It is a common choice for weld grinding, deburring, and surface preparation in light fabrication and structural metal work environments.

Key Features

• Zirconia alumina abrasive at 60 grit for aggressive material removal on steel and stainless steel
• Type 27 and Type 42 dual-rated wheel for flat and depressed-center angle grinder use
• Resinoid bond with reinforced construction for durability under load
• 13,300 RPM maximum operating speed rated for standard angle grinder use
• 7/8 inch arbor hole fits common angle grinder spindle sizes
• Rated for stainless steel, carbon steel, and thin gauge metal applications

Compatibility

Compatible with angle grinders accepting a 7/8 inch arbor and rated for Type 27 or Type 42 depressed center wheels. Suitable for grinding stainless steel, steel, and thin gauge metal.

Installation Notes

Installation should be performed by a qualified operator following ANSI B7.1 safety standards for abrasive wheel mounting. Always power down and unplug or de-energize the angle grinder before mounting or removing the wheel. Inspect the wheel for cracks or damage before each use and never exceed the rated maximum RPM of 13,300. Ensure the correct guard and backing flange are in place before operating.