OLFA 18mm Heavy Duty Utility Knife Replacement Blades, 10 Blades (L-SOL-10B) - Steel Razor Blade Cutter Replacement Blades, Fits Any 18mm Utility

HEIKIO 18mm Snap-Off Blades, 50-Pack, Quality Black Carbon Steel Made, Sharp And Durable, Heavy-Duty Replacement Blade For 18mm Box Cutter And Utility

HIEMTE 30Pcs 18mm Utility Knife Replacement Snap Off Blades 60 Degreeblades For Utility Knife And 18mm Box Cutter - Razor Sharp SK4 Steel

OLFA 18mm Heavy-Duty Ultra-Sharp, Snap Off Replacement Blades, 50 Blades (400 Segments) LBB-50B - Snap-Off Utility Knife Replacement Blades, 25%

ASSIST 60-Pack 18mm Snap-Off Blades,Nice Tempered Black Blade, SK2 High-Carbon Steel Replacement For All 18mm Utility Knife & Box Cutter

WORKPRO 18mm Snap-Off Blades, SK5 Steel Replacement Blade Fits All 18mm Utility Knife & Box Cutter, Pack Of 100

DOWELL 18mm Snap Off Blade SK5 Utility Knife Retractable Blades Box Cutter Blades (100Pc)