This quality tool has been developed specially for Mac-Lace Leather and has been thoroughly tested and works well. The Strap Cutter can be adjusted to cut straps from a few mm wide up to 100mm wide. It can also be adjusted to cut leather from about 2 mm up to 5 mm thick. Simply put a straight edge on your leather then pull the tool towards yourself. The Strap Cutter comes with 2 cutting blades and extra blades (MAC924 pack of 5 blades) can also be purchased separately.