X-ACTO 3272 Heavy Duty Retractable Utility Knife

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WORKPRO Premium Utility Knife, 1PC Retractable All Metal Heavy Duty B

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Excel 16850 Heavy Duty Plastic Retractable Box Cutter, 18MM Snap Knife

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HAUTMEC Easy Loading Retractable Snap Off Heavy Duty 18mm Utility Knife Box Cutter Art Knife, with Extra 10 Pieces SK2 Rust

HORUSDY 4-Pack Box Cutter Utility Knife, Heavy Duty Aluminum Shell Retractable Box Cutter for Cardboard, Boxes and Cartons, Extra 10 Blades.

ORIENTOOLS Utility Knife Auto-Load Box Cutter Heavy Duty, Retractable 3 Position, Blade Storage with 6 Blades, Rubber Grip