Product details:

The Universal Bowrench BW90 is a simple to use tool that is great for both professional deck builders and also for those who want to do it themselves. You simply fit the adjusted gripper onto a joist, swing the lever and release. This tool is great for warped wood especially at longer length. The BW90 is a fast, one-person, board-straightening tool. The adjustable gripper is perfect for wider joists. Also included is a tongue and groove cam for plywood and paneling with tongue and groove.