The OLFA HB-5B Heavy-Duty Spare Blades are engineered for tough industrial and construction cutting tasks. Manufactured from premium carbon tool steel and precision honed for maximum sharpness, these 25mm snap-off blades deliver powerful, reliable performance on demanding materials.
Key Features & Benefits
- 25 mm heavy-duty snap-off blades for maximum cutting power
- Ultra-sharp Black blade technology for superior edge performance
- High-quality carbon tool steel for durability and long blade life
- Exact 59° cutting edge angle for optimal cutting efficiency and reduced breakage
- 6 snap-off segments per blade for extended use
- Micro-honed, double-honed edge for exceptional sharpness and edge retention
- Fits all OLFA 25 mm utility knives
- Supplied in a secure blister pack container
Compatible OLFA Utility Knives
Fits all OLFA 25 mm utility knives, including:
- NH-1
- H-1
- XH-1
- XH-AL
- HSW-1
Suitable Materials & Applications
Ideal for cutting:
- Gaskets
- Conduit
- Synthetic belts
- Rope and twine
- Leather
- Laminates
- Plastics
- Fiberglass
- Rubber
- Textiles
- Acetates
Ideal For
- General construction
- Industrial maintenance
- Trade professionals
- Heavy-duty DIY projects









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