Handheld trimming knife used to straight cut matboard and foamboard down to size. Also can be used to make irregular shaped cuts that require freehand trimming. Works on material up to 1/4 inch (6.35 mm) thick, and matboard up to 8 ply. Features 3 adjustable depth settings. Best if used with a straightedge, or with Logan Adapt-A-Rule, Team Systems, or board mounted cutters. Includes 3 #270 blades. Made in USA.