• Best For: Contractors who need a 4-inch (102mm) core hole in concrete, including concrete with heavy steel.
• Highlight: The 4-inch (102mm) MK-Black Turbo bit uses a high diamond concentration and segment design that channels slurry better and cuts with less vibration in heavy-steel concrete.
• Expert Note: Choose by hole size: this is the 4-inch (102mm) step in the MK-Black Turbo core bit line, sitting between the 3-1/2-inch (89mm) and 4-1/2-inch (114mm) bits.
