Zinsser 9 mm Snap-Off Knife (Case of 8) 98021 - The Home Depot
OLFA DA-1 9mm Snap-Off Blade Auto-Lock Standard-Duty Utility Knife with Blade Disposal Station - AliExpress
Snap-Off Knives | STANLEY® Tools
3 Small Safety Box Cutter Utility Knife Retractable Snap off Blade BLACK - Walmart.com
Amazon.com: WEKOIL 9mm Snap Off Utility Knife 5 Pack High Hardness Retractable Box Cutters with Snap Off Blades,Art Craft Hobby Cutter 9mm Knife for Home Office Workstation : Tools & Home Improvement