• Best For: Tile installers who need a larger 2-3/4" hole through ceramic tile or marble where a continuous-rim bit is called for.
• Highlight: A 2-3/4" continuous-rim diamond bit with a replaceable pilot drill to prevent wandering at the start of the hole.
• Expert Note: MK-290 bits larger than 2-1/4" use a continuous rim instead of a turbo rim, which is how this 2-3/4" size differs from the 1-5/8" and 1-7/8" bits, and it can be used wet or dry.