Includes 5-each of Forney® CAT# 71877. 4-1/2 x 1/4 x 7/8 arbor Type 27 depressed center aluminum oxide metal cutting wheel. Designed for metal cutting, metal abrasion, body work, metal fabrication and general repair work. Used on ferrous materials. Designed to be used on right angle grinders. ISO 9001 certified. Job pack Includes 5-each of Forney CAT# 71877Specification: A24R Max RPM: 13,300Type 27 depressed center aluminum oxide metal grinding wheelDesigned for metal grinding, metal abrasion, body work, metal fabrication and general repair workUsed on ferrous materialsDesigned to be used on right angle grindersWheel Size: 4-1/2 in.Thickness: 1/4 in.Arbor: 7/8 in.