[Size Specification] - The PRVEW cut off wheel 3 x 3/8 Inch is perfectly compatible for all 3" portable die grinders and angle grinders with 3/8" arbor; Thickness:1/16 inch(1.6mm), Operating up to 20300 RPM 80M/S. | [Reliable&Safe Discs] PRVEW metal cutting disc is reinforced by double fiberglass meash,complying with international standards and safety requirements such as EN 12413, | [Long Lasting Discs] PRVEW metal cutting disc is made of premium aluminum oxide grain, for which provides aggressive cutting action and long service life | [Great Performance] The thin design of 1/16 inch thickness cutting off wheels provides fast, precise, and clean cutting performance with minimal burrs and material waste. | [Multi-Applications] PRVEW 3-inch cutting discs compatible with Die Grinder, Air Cut Off Tool and Electric Cut Off Tool. and are very suitable for super-fast, clean cutting in carbon steel, stainless steel, iron, copper, and other ferrous metals.