Sell now Utility Knife Replacement fixed blade knives Lightweight Box Opener Cutter $5.79 Heavy Duty Self Loading Utility Cutter With Grip Plus 2 Replacement Blades $4.62 Lot of 5 Utility Knife Replacement fixed blade knives Lightweight Opener Cutter $10.49 Lot of 2 Utility Knife Replacement fixed blade knives Lightweight Opener Cutter $6.49 Lot of 5 - Cutter Blade 18mm Snap Off Box Utility Knife Razor Refill 12 Per Pack $11.98 Lot of 2 - Cutter Blade 18mm Snap Off Box Utility Knife Razor Refill 12 Per Pack $5.99 Lot of 5 - Heavy Duty Self Loading Utility Cutter W/Grip & 2 Replacement Blades $16.49 Lot of 2 Heavy Duty Self Loading Utility Cutter W/Grip Plus 2 Replacement Blades $7.89