This beam cutter attachment from Prazi enables your standard circular saw to rib lumber up to 12″ thick — perfect for making single pass cuts of beams, posts, and logs. The attachment installs with three bolts and doesn’t require you to remove any existing saw parts, so it converts back just as quickly.
The beam cutter essentially converts your circ saw into a vertical chain saw, complete with a low-profile, anti-kickback chain and a foot plate to help you guide it easily. The PR2000 (pictured) is designed to fit Makita and DeWalt saws, but Prazi offers other models to match different makes; there’s probably one there for whatever kind of professional saw you own.
According to Prazi, you can also use the ‘cutter to cut rafter pitch cutouts, miters, stringers, arches, and even compound angles. Check out the video on the page linked below for details and to see the ‘cutter in action.
Street pricing starts around $145.