Tiger Aluminum 4.5 inch type 27 combo wheels are specifically designed for high performance cutting and grinding and extended wheel life on aluminum. These wheels blend abrasive grains with Weiler’s non-loading formula, resulting in a fast and consistent cut rate on aluminum. Combination wheels offer flexibility and efficiency when switching between cutting and grinding applications with a right angle grinder. Small 5/8″ – 11 nutted metal hub reduces gouging of the workpiece and allows for 30% more usable surface area of the wheel in addition to providing quick spin-on, spin-off changeover of a standard hub. Non-loading formula keeps the wheel from gumming up, allowing operators to get more work done in less time without compromising durability. Silicon carbide and aluminum oxide blend delivers a consistently high cut rate throughout the life of the wheel. Contaminant-free wheels deliver a worry-free solution for aluminum applications. Combination wheels offer flexibility and efficiency when switching between cutting and grinding applications. Small 5/8″ – 11 nutted metal hub reduces gouging of the workpiece and allows for 30% more usable surface area of the wheel in addition to providing quick spin-on, spin-off changeover of a standard hub.