HB-5B

• These seven-segment snap-off blades let you "change" your knife blade in a snap. The pack includes five blades,giving you 35 fresh cutting edges for super heavy-conduit, belt synthetics, rope, leather, laminates, plastics, fiberglass, rubber, textiles, and more.
• Micro-honed blade provides superior initial sharpeness and edge retention. Constructed from premium carbon tool steel. Exact 59-degree front-edge angle optimizes cutting power and minimizes blade breakage. Seven segments per blade.
• Fits all OLFA PRO 25mm utility knives.

HBB-5B

• These super heavy-duty blades are designed for more demanding materials and projects. Put them to the test on industrial materials sush as gaskets, conduit, belt synthetics, rope, leather, laminates,plastics,fiberglass,rubber,textiles, and more.
• Ultra-sharp black blade has a 25% sharper edge for less cutting resistance. Constructed from premium carbon tool steel. Exact 59-degree front-edge angle optimizes cutting power and minimizes blade breakage. Seven segments per blade.
• Fits all OLFA PRO 25mm utility knives.