Stanley® Quick-Point™ Blade measuring 4 1/4" X 1/50" can fit 10-218, 10-480, 10-380, 10-280, 10-220, 10-418 as well as 10-151 snap-off blade knives and other 18 mm snap-off blade knives. Blade is replaceable and has 8 cutting points for efficiency, sold as 3 per pack.