• Best For: Contractors wet-drilling 5-1/2-inch (140mm) holes in concrete or asphalt with light to moderate steel reinforcement.
• Highlight: Premium grade MK Orange with a high diamond concentration for excellent footage and cutting speed.
• Expert Note: Premium grade sits between the standard grade MK Yellow and the supreme grade MK Black lines; this listing is the 5-1/2-inch (140mm) size and must be run wet.