Tiger Zirc 5 inch type 27 combo wheels cut faster and last longer so you get proven productivity at an exceptional total cost. The self-sharpening zirconia alumina grains retain a high cut rate throughout the life of the wheel while a hard bond delivers long wheel life for heavy duty applications. Combination wheels offer flexibility and efficiency when switching between cutting and grinding applications with a right angle grinder. The 5/8" - 11 nutted metal hub allows for quick spin-on, spin-off changeover and eliminates cross-threading or sticking to spindle due to heat build-up. These wheels are designed for hardcore Metal Fabrication professionals who need a high performance solution when cutting and grinding steel, structural steel, and iron.