The MK-290 is MK Diamond's Premium Grade diamond tile bit, designed to cut clean, smooth holes through ceramic tile and marble. Part number 152794 is the 2-1/2-inch (64mm) bit with a continuous diamond rim and a 10mm shank. A replaceable pilot drill keeps the bit from wandering when you start the hole, and it can be used wet or dry.
Use cases
- Plumbing and fixture holes. Drill clean holes in tile for faucets, valves and shower fittings.
- Ceramic tile and marble. MK lists the MK-290 for all ceramic tile and marble.
- Remodeling and tile setting. Cut outlet, vent and pipe openings on site without chipping the glaze.
- Replacing a worn bit. A like-for-like swap for a 2-1/2-inch MK-290 continuous rim bit.
Specifications
- MK Diamond part number: 152794
- Bit series: MK-290, Premium Grade
- Diameter: 2-1/2-inch (64mm)
- Rim style: Continuous rim
- Shank: 10mm
- Pilot drill: Replaceable
- Cutting method: Wet or dry
Fit check
Match the bit diameter to the hole you need and confirm your drill chuck accepts a 10mm shank. For the longest bit life, run it with a little water when you can.
Frequently asked questions
What does the MK-290 cut?
MK Diamond designs it to cut clean, smooth holes through all ceramic tile and marble.
Can I use it dry?
Yes. MK says it can be used wet or dry.
What stops the bit from wandering?
A replaceable pilot drill holds the bit in place when starting a hole.
What size is part 152794?
It is a 2-1/2-inch (64mm) bit with a continuous rim.
Discount Cleaning Products is an authorized MK Diamond dealer, and our US-based team can help you match a product to your saw, drill, arbor size and cutting material before you order.
