If your MK Diamond tile saw switch has given out, this HQRP replacement will get you back to cutting tiles in no time! This 4-pin toggle switch is specifically designed to work with the MK Diamond 154310 MK-101 wet cutting tile saw - just make sure you're comfortable with basic electrical work before installing. The specs are solid - handles 2HP motors and rates for 20/15A at 125/277V, so it can handle the power demands of your tile saw. Comes with a handy coaster too, which is a nice bonus. Important to note this isn't an original OEM part - it's HQRP branded but made to be fully compatible with your machine. The ON/OFF operation is straightforward, just like your original switch. They back it with a 200-day warranty, which is pretty generous for a replacement part. Installation is pretty straightforward if you've done basic wiring before - just match up the pins and make sure everything's secure. Way more affordable than buying a whole new switch assembly from the manufacturer, and in my experience, these aftermarket switches work just as well as the originals. Just remember to always disconnect power before doing any electrical work, and if you're not comfortable with wiring, maybe have a professional handle the installation. Beats the cost of a new tile saw, that's for sure!