I had sold out of these lots and just got a few more in…..(5) PACKS 3M 33456 Cubitron II 3′ x .04′ x 3/8′ Cut-Off Wheel – 5 Wheels per pack. Total 25 wheels. Nice lot…… rated at 25465 RPM. These wheels really shine when used on tough metals such as auto body sheet metal, stainless steel, inconel….ect…..but are awesome on all metals….including softer metals and also fiberglass and plastics. DetailsOutstanding cutting performance on both mild steel and ultra high strength steelCubitron™ II cuts 30% faster and lasts 2x longer than conventional ceramic abrasivesPrecision Shaped Grain (PSG) technology employs microreplication for extremely uniform abrasiveTriangular PSG abrasive grains are super-sharp and cut exceptionally fastGrains are electrostatically oriented on abrasive surface for efficient cut, even wearPSG self-fractures during use to maintain sharpness and prolong abrasive lifeFewer wheel changes means speedier turnaroundThe 3M™ Cubitron™ II Cut-Off Wheels with Precision Shaped Grain are engineered to cut faster than competitive ceramic products offering significant productivity gains. The collision repair professionals value its fast cutting action on heat-sensitive metals and its cutting efficiency, yielding 2 to 7x more cuts than conventional cut-off wheels in many cases. High Performance Cutting Long-lasting without loss of performance, our 3M™ Cubitron™ II Cut-Off Wheel efficiently cuts through even the toughest metal giving you better control while operating and over results. One of 3M’s best, this rigid, reinforced resin-bonded cut-off wheel features Cubitron™ II Precision Shaped Grain. When compared with traditional aluminum oxide, zirconia or ceramic grain, Cubitron II abrasives cut faster and last significantly longer. And, they require less pressure and less effort on the part of the operator to do the work. Consistently faster cutting reduces cycle times. Less pressure means less wear and tear on the operator and cooler cutting action reduces the risk of heat-related stress and thermal damage. It all adds up to greater productivity.Recommended for Cutting and Heavy Stock Removal on Metal and Fiberglass Use this wheel for cutting even the toughest auto body panels, frame rail, exhaust pipes, clamps and rusted bolts. Never use cut-off wheels for grinding. The wheel must have a maximum operating speed greater than or equal to the maximum speed of the power tool used. About Cut-Off Wheels: Fast, Precise and Cost-Effective Cut-off grinding remains the most precise and cost-effective means of cutting apart unalloyed to high-alloyed, special-alloyed and hardened steels. Far superior to sawing, it is capable of cutting materials no other technique can cut. Unlike coated abrasive discs, which shape or smooth objects employing the face of the abrasive, these wheels cut at right angles utilizing the outer edge of the wheel. Cut-off wheels literally grind their way through the substrate, rather than chipping away with individual teeth and do so with a minimum of wasted material. A Portfolio of Abrasive Systems Solutions From specialty abrasives designed for a highly specific purpose to versatile sheets, 3M delivers an abrasive to accomplish your task or perfect your system. At 3M, we draw from a wealth of original technologies and breakthrough inventions to provide a broad portfolio of abrasives that shape, finish and polish with ease and precision. This premium Cut-off wheel contains precision shaped grain for ultra fast cool cutting action and long life. Auto body technicians are impressed by the outstanding cutting performance on both mild steel and ultra high strength steel.3M(TM) Cubitron(TM) II cut-off wheels with precision-shaped grain are engineered to cut faster than competitive ceramic products, offering significant productivity gainsTriangular shaped ceramic grain wears evenly, runs cool, and optimizes mineral breakdown, for extra long lifeRigid, reinforced resin-bonded wheel slices through almost all automotive materials including mild steel and ultra high strength steelWheel must have a maximum operating speed greater than or equal to the maximum speed of the power tool usedWARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.