Sintered diamond grinding wheel with 7mm segment height for smooth cutting of concrete, masonry and stone. Double row offers finer finishing. Max 15,000rpm. Compatible with 22.23mm bore static tile cutting machines and angle grinders, including Silverline and GMC. Wet or dry use. Optimum results when used wet. Sintered diamond grinding wheel with 7mm segment height for smooth cutting of concrete, masonry and stone. Double row offers finer finishing. Max 15,000rpm. Compatible with 22.23mm bore static tile cutting machines and angle grinders, including Silverline and GMC. Wet or dry use. Optimum results when used wet.