5PK Util Knife Blades

5 Pack, Patented Bi-Metal Safety Utility Blades, Irwin Patented Bi-Metal Construction Features Unbreakable Blades Are Safer To Work With, Last Longer Than Traditional Utility Knife Blades, Blunt Tips On Safety Blades Reduces The Risk Of Puncture Wounds But Still Allows For Penetration Of Surfaces.