The Head Cutter is a unique chain-saw attachment that can be clamped to virtually any length bar up to 3 inches wide to act as an adjustable guide plate, transforming the chain saw into a precision cutting tool. Made from 6061 aluminum, the guide plate is available in two sizes, and can be tilted up to 75 degrees. You can watch the tool in action in this video. The MSRP of the standard Head Cutter is $259; the larger Head Cutter XL is equipped with a built-in handle and has a MSRP of $349. bigfoottools.com