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10 Best 18mm Utility Knives blades of 2026
Save up to 21% off
Best Choice1
OLFAOLFA 18mm Heavy-Duty Ultra-Sharp, Snap Off Replacement Blades, 50 Blades (400 segments) LBB-50B - Snap-Off Utility Knife Replacement Blades, 25% Sharper than Silver, Fits most 18mm Utility Knife
9.6Exceptional
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Value for Money2
BerklingBerkling 18mm Utility Knife Blades, 50 PCS | SK2H Blackened Steel | 3x Sharper & 5x More Durable Than SK5 | Fits All 18mm Utility Knives & Box Cutters
9.5Excellent
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3
DOWELLDOWELL 18mm Snap Off Blades SK5 Utility Knife Retractable Blades Box Cutter (30pcs)
9.3Excellent
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4
DOWELLDOWELL 18mm Snap Off Blade SK5 Utility Knife Retractable Blades Box Cutter Blades (100pc)
19% Off9.2Excellent
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5
Edward ToolsEdward Tools Utility Knife/Box Cutter Snap Off Blades - Pack of 10-18mm - Razor Sharp SK5 Steel - Plastic Organizer Case
Key specs-
blade material:SK5 Steel
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blade length:18mm
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style:Snap Off
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handle material:Plastic, Steel
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power source:N/A
9.1Excellent
Our Rating
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6
WORKPROWORKPRO 18mm Snap-off Blades, SK5 Steel Replacement Blade Fits all 18mm Utility Knife & Box Cutter, Pack of 100
21% Off8.9Very Good
Our Rating
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7
EFFEKTWERKE•Werk - Box Cutter Blade Set - Black, 25 Pack - 18mm Utility Knife Replacement Blades - Heavy Duty Carbon Steel Snap Off Blades - Blade Refills for Utility Knives & Box Cutters
8.6Very Good
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8
EFFEKTWERKE•Werk - Box Cutter Blade Set - Black, 60 Pack - 18mm Utility Knife Replacement Blades - Heavy Duty Carbon Steel Snap Off Blades - Blade Refills for Utility Knives & Box Cutters
8.3Good
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9
HEIKIOHEIKIO 18mm Snap-off Blades, 50-Pack, Quality Black Carbon Steel Made, Sharp and Durable, Heavy-duty Replacement Blade for 18mm Box Cutter and Utility Knife
14% Off8.2Good
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10
HIEMTEHIEMTE 30Pcs 18mm Utility Knife Replacement Snap off Blades 60 Degree，Blades for Utility Knife and 18mm Box Cutter - Razor Sharp SK4 Steel
8.1Good
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