• Highlight: MK Diamond's MK Black Supreme is the heaviest-duty wet core bit in the line — high diamond concentration handles heavily reinforced concrete and rebar-loaded slabs that grind cheaper bits flat.
• Best For: Demolition contractors, mechanical contractors, and concrete cutting crews drilling large-diameter holes through structural concrete, bridge decks, and heavily reinforced slabs.
• Expert Note: The 10" (254mm) Supreme grade bit requires a rigid water-fed core drill stand and clean water flow; expect rebar contact — drop feed pressure and increase water flow whenever the bit hits steel.
