The Logan 500 Mat Knife now features a quick adjustment blade holding knob for 8-ply mat board. The knob allows a user to quickly loosen the blade from one depth setting and reset it to a different setting in seconds — the blade holding knob no longer needs to be removed when resetting the blade depth.

The 500 Mat Knife is used for straight cutting mat board down to size. Use with any suitable straight edge, including Logan Adapt-A-Rule, Logan Team System, and most Logan board mounted cutters. The mat knife offers three depth settings: safety, single sheet, and double thick. Purchase comes with three extra mat cutter blades and uses a Logan 270 blade.