Olfa Special Black Blade Large Size Utility Knife Replacement Blades (25 Pack) LBB25K by Daitool

The Special Black series of blades from Olfa emphasizes sharpness. They are sharper than typical utility knife blades, because the cutting edge is ground at a sharper angle. The added sharpness means they can cut through corrugated cardboard, plastics, and multiple sheets of paper without much force, but they will dull slightly faster than a standard utility knife blade. If you're cutting thicker or more rigid materials often, Olfa Special Black Blades are just right for you.

OLFA 25mm Extra Heavy-Duty Snap Off Replacement Blades, 20 Blades (140 segments) HB-20B - Snap-Off Utility Knife Replacement Blades, Fits most 25mm Utility Knives - Knife Blades

OLFA Carbon Steel 25mm Snap-off Utility Razor Blade(10-Pack) in the Replacement Utility Blades department at

OLFA 25mm Super Heavy Duty Ultra Sharp Black Snap Off Blade (HBB-20B) - Knife Blades

OLFA 25mm HSWB-1/1B Carbon Tool Steel Saw Blade is designed for advanced cutting on tough materials. It can be used with most OLFA 25mm utility knife handles.

Olfa 1105914 Pull Saw Blade

OLFA 9mm Precision Utility Knife (180) - Multi-Purpose Retractable Precision Knife w/Snap-Off Blade, Replacement Blades: Any OLFA 9mm Blade

OLFA 18mm LBB Ultra-Sharp Black Snap Blades –

OLFA Replacement Speed Black Blade 18mm L-type Heavy Duty Cutter LBSP5K JAPAN

The Special Black series of blades from Olfa emphasizes sharpness. They are sharper than typical utility knife blades, because the cutting edge is ground at a sharper angle. The added sharpness means they can cut through corrugated cardboard, plastics, and multiple sheets of paper without much force, but they will dull slightly faster than a standard utility knife blade. If you're cutting thicker or more rigid materials often, Olfa Special Black Blades are just right for you.

Olfa Special Black Blade Large Size Utility Knife Replacement Blades (25 Pack) LBB25K by Daitool

Olfa Speed Blades are exceptionally light and fast, even when cutting thick materials. This is due to the fluorine treatment of the alloy steel blades, which gives them their special black finish. The fluorine processing and polished surface dramatically reduce resistance while cutting, saving you time and effort as you work.

Olfa Speed Blade Large Size Replacement Blades for Utility Knife (20 Pack) LBSP20K

A large cutter knife from the X design hyper series designed with a shape that does not slip and is easy to apply force when grasped. The polished surface of the special black blade is fluorinated, and the speed blade is surprisingly light and is ideal for cutting cardboard and styrene boards. Comes with claws that are convenient for packing and unpacking work and opening the lid of paint cans. Auto-lock type that can be locked firmly with one touch.

Olfa Cutter Knife Speed Hyper AL-227B

OLFA 25mm HB Silver Snap Blades - 5, 20, or 40 Pk –

OLFA 25mm Extra Heavy-Duty Snap Off Replacement Blades, 20 Blades (140 segments) HB-20B - Snap-Off Utility Knife Replacement Blades, Fits most 25mm Utility Knives - Knife Blades