Walter Surface Technologies’ Zip Wheel is an ultra-thin cutting wheel for portable angle grinders. It is made of abrasives with an improved engineered formulation, for a wheel that is more durable and has even better cohesion than the previous version, the company says. The integrated rib design enables operators to cut faster and more comfortably, while using less pressure than standard thin cut-off wheels, the company says. Heat is reduced, resulting in less discoloration and minimal burr. The wheels are heavily reinforced for extra safety and yet are flexible and resistant to twisting and bending, the company says. All of these improvements combine to deliver faster cuts, longer disc life, less surface damage and straighter cuts.