Stanley Quick-Point 11-301 Utility Replacement Blade, High Carbon Steel, Snap-Off, 4-1/4 in L x 0.02 in W Blade, Compatible With: 10-218, 10-480, 10-380, 10-280, 10-220, 10-481 and 10-151 Snap-Off Blade Knife and 18 mm Snap-Off Blade Knife, 0.02 in THK