• Highlight: MK Diamond's MK Yellow standard-grade core bit delivers fast wet drilling in concrete and asphalt at value-grade pricing — a sensible choice for utility holes, anchor sleeves, and small conduit penetrations.
• Best For: Electricians, plumbers, and general contractors drilling small-diameter holes for conduit, drain lines, and anchor bolts through concrete walls and slabs.
• Expert Note: The 1-1/4" (32mm) MK Yellow is wet-rated; pair with a water-fed core drill rig or a rotary hammer water swivel to extend segment life and prevent the diamond bond from glazing.
