DEWALT DW4999 Type 27 Metal Grinding Wheel, 4-1/2 x 1/4 x 7/8 in

The DEWALT DW4999 Type 27 metal grinding wheel is a 4-1/2-inch depressed-center wheel built for aggressive material removal and long service life. Its high-performance aluminum oxide grain and dense grain structure handle general metal grinding, weld smoothing, and shaping on a range of ferrous and non-ferrous materials. If you need a dependable grinding wheel for your angle grinder, the DW4999 is a solid choice for weekend fabricators, professional welders, and contractors who want smooth-running, durable consumables.

DEWALT DW4999 Type 27 Metal Grinding Wheel Performance

The DW4999 features a high grain concentration that makes grinding action more aggressive while keeping the wheel smooth and balanced. That means faster stock removal without excessive vibration or binding. The proprietary material mix and three full sheets of fiberglass reinforcement give the wheel durability and safety on heavy applications.

Size, Arbor, and Wheel Selection

This wheel measures 4-1/2 x 1/4 x 7/8 inches, which fits most standard angle grinders with a 7/8-inch arbor. The 1/4-inch thickness balances stock removal with control. If you're cutting rather than grinding, choose a thin cut-off wheel; if you're blending surfaces, a flap disc may be better. For normal weld grinding and scale removal, the DW4999 is right at home.

Which Metals Can It Grind?

Aluminum oxide is a versatile abrasive for carbon steel, stainless steel, and many non-ferrous alloys. It works well on welds, castings, and plate edges. If your plan is carbide tool sharpening, this wheel is not the right choice—tungsten carbide needs a diamond or silicon-carbide wheel. For general metal grinding and shaping, the DW4999 delivers the aggressive finish you're after.