Olfa LBB-50B EXCEL Black Ultra Sharp Blade-Pack of 50

OLFA 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

OLFA 18mm Heavy-Duty Utility Knife (L-1) - Multi-Purpose Custom Cutting Depth Utility Knife w/Ergonomic Grip Handle & Snap-Off Blade, Replacement Blades: Any OLFA 18mm Blade

OLFA 18mm Heavy-Duty Utility Knife (L-2) - Multi-Purpose Custom Cutting Depth Precision Knife w/Rubber Inset for Increased Precision & Snap-Off Blade, Replacement Blades: Any OLFA 18mm Blade