Olfa "L-1" Utility Knife - 18 mm Blade

This L-1 Olfa snap-off utility knife is the original & most popular multi-purpose heavy-duty cutter knife made by Olfa. It takes 18 mm (3/4") wide blades. This Olfa snap off knife includes the general purpose silver blade; premium carbon tool steel LB blade for superior sharpness & edge retention. The knife also has a ratchet-wheel lock for maximum blade security. Additionally, the blade is fully supported by a channel crafted from stainless-steel to guaranteed secure cutting. Tool-free blade change.   Made in Japan. 

From the Manufacturer - About OLFA:

    OLFA brand blades are made with top quality materials, forged with technologies that stem from traditional sword-making, sharpened with technologies that give a blade life, and ultimately finished with the craftsmanship that brings all of this together. The holders and handles that allow users to gain the full cutting performance of these high quality blades are designed, developed and manufactured in Japan and subjected to stringent quality checks throughout the process.