TAB-Product-Overview
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The OLFA 25mm H‑1 Extra Heavy‑Duty Utility Knife is built for cutting tough materials in construction, roofing, and industrial applications. The durable ABS handle with anti‑slip rubber insert provides added grip, comfort, and leverage, while the stainless‑steel blade channel ensures strength and stability.
Preloaded with a 25mm Extra Heavy‑Duty Silver Snap‑Off Blade, it delivers powerful cutting performance with multiple snap‑off segments for long‑lasting sharpness. The ratchet‑lock system allows precise blade adjustment, and tool‑free blade changes keep work fast and efficient on the jobsite.
(H-1, #5006)
TAB-Blade-Compatibility
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Accepts all OLFA 25mm blades including HBB Ultra-Black Snap Blades, HH Hook Snap Blades, and HSWB Saw Blade.
TAB-Applications
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| Cardboard/corrugate | Carpet |
| Cement board | Drywall |
| Flexible plastics | Gaskets |
| House wrap | Landscape fabrics |
| Linoleum | Plastic sheeting |
| plastic straps | Shingles |
| Shrink wrap | Tape |
| Twine/rope | And more |
TAB-Support-&-Resources
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BLADE CHANGE INSTRUCTIONS: Click here for directions on how to change your blade
HOW TO SNAP INSTRUCTIONS: Click here for directions on how to snap a blade
WARRANTY: Click here for the Warranty.
WARNING: California Proposition 65 Warning.
SELL SHEET: Click here to download H-1 Sell Sheet
SELL SHEET (FRENCH): Click here to download H-1 Sell Sheet in French
TAB-Distributors
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© 2026 OLFA North America Inc. OLFA is a registered trademark of OLFA Corporation, Japan, used under license by OLFA North America Inc.