Metabo’s Wall Chaser MFE 30 is a specialty tool for cutting grooves or chases in masonry or concrete. The tool saves time by cutting both sides of the groove at once. Then all you need to do is chisel out the middle with the supplied extraction chisel.
Two 4-7/8″ diameter diamond cutting disks allow you to cut grooves 3/8″, 5/8″, 7/8″, or 1-1/8″ wide and up to 1-1/8″ deep, or you can just use one blade for other cutting chores. A dust port connects to common-sized suction hoses to keep the dust down.
Metabo touts a bunch of proprietary features like Tacho Constamatic full-wave electronics, electronic starting current limitation, Metabo winding protection grid, and Metabo S-automatic torque limiting clutch. That sounds like a lot of jargon, but in the end what really matters is they claim the 8.6 pound saw can turn 1400W of electricity into the equivalent of 750W of power to spin the cutting disks at 8200 RPM under their rated load.
The Wall Chaser ships with the extraction chisel and an extra handle. Pricing starts at $660.