By Heather Burlingame, Senior Production Editor | September 28, 2010

Sawtec JS-90The Sawtec JS-90 joint-clean-out saw also doubles as a concrete saw and a trench cutter. Its cut depth (to a maximum of 3 inches) is easily set and gauged, says the company, and a double pointer improves visibility and accuracy. The JS-90 uses dry diamond blades and features a blade guard with an up-cutting rotation, allowing easy dust extraction and quick connection to a dust-collection system. Joint cleaning speed is estimated at 20 to 60 feet per minute, depending on the application and the material being cut.