C.R. Lawrence NS4000 DRL, 12 Volt Cordless Diamond Notching Saw Kit
The C.R. Lawrence saw is a modified Makita cordless circular saw. The major modification is the addition of a water bottle and feeding mechanism as well as a change of blade. There is probably also an additional seal, to prevent the water from getting into the drive mechanism or motor. Being a Makita, you can count on this saw to be quality and to last.
The incredibly small size means this saw can be used to make cuts in place, including plunge cuts, even in tight spaces. The motor turns at 1,400 RPM and the shoe tilts up to 45 degrees. The Li-Ion battery pack provides long-service life, along with fast recharge times. This same saw is also sold for cutting glass.