• Best For: Coring contractors drilling 14-inch holes through reinforced concrete or asphalt with a wet-cooled core drill.
• Highlight: The MK Black Supreme segmented diamond matrix is built for moderate to high steel reinforcement, holding footage and cutting speed where lighter-duty bits slow down.
• Expert Note: Run this 14-inch bit wet to control heat and dust; the Black Supreme grade is the step up from MK standard bits when rebar density increases.