3 Inch Metal Cut Off Wheels Blade Kit for Air Die Grinder and Drill [1/16 in. Thickness] Ideal for cutting metal, sheet metal, rusted bolts, welds Kit comes with 1/4" mandrel & five 3" cut off wheels The 1/4" Mandrel can work with your existing wheels of 3/8" arbor 25,000 RPM Max Compatible with 1/4" air die grinders and any drill