Olfa H-1 25mm Extra Heavy-Duty Utility Knife with Rubber Grip Inset

Maximum Leverage. 1-Inch Wide Blade. Engineered for Extreme Material Demands.

The Olfa H-1 is the heavy-hitter of the utility knife world. Designed for tasks where a standard 18mm knife simply won't cut it, the H-1 features a massive 25mm snap-off blade. This extra width and thickness provide the rigidity needed to power through rigid materials like plywood, OSB, heavy-duty conveyor belts, and roofing shingles.

Control is everything when applying high pressure, which is why the H-1 is built with an anti-slip rubber inset grip. This high-traction surface ensures that even when wearing heavy gloves or working in wet conditions, you maintain a secure "power-grip" on the tool. Coupled with the industrial ratchet-lock system, the blade remains locked in place no matter how much force you put behind the cut.

Key Features & Professional Benefits:

• Massive 25mm Snap-Off Blade: The widest and toughest blade in the Olfa lineup, providing unmatched stability and preventing the "flex" common in smaller knives.
• Anti-Slip Rubber Inset: The oversized handle features a rubberized insert that maximizes grip and reduces hand fatigue during high-torque cutting.
• Heavy-Duty Ratchet Lock: The professional dial-lock mechanism provides unlimited blade positions and ensures the blade stays anchored under extreme pressure.
• Full-Length Stainless Steel Channel: A wide, rigid steel channel supports the 1-inch blade, protecting the user and providing a precise, unwavering cut path.
• Reinforced ABS Body: Constructed from high-impact ABS plastic, the H-1 is designed to survive the rigors of industrial sites and heavy tool bags.
• Acetone Resistant: The handle and rubber grip are resistant to common jobsite solvents, preventing the material from becoming gummy or brittle over time.
• Tool-Free Blade Refresh: Featuring 7 razor-sharp segments per blade; just snap for a new edge or swap the blade entirely without needing additional tools.

Product Specifications:

The Industrial Heavy-Weight

The Olfa H-1 isn't just a utility knife; it is a high-leverage cutting system. By combining the stability of a 25mm blade with an ergonomic power-grip handle, Olfa has created the ultimate tool for demolition and heavy construction. For the professional at The Fastener Group who deals with the toughest materials on the site, the H-1 is the only choice for extreme performance.

Stop struggling with undersized knives. Upgrade to the Olfa H-1 and experience the raw power of a 25mm extra heavy-duty blade.

Power Your Cuts 

Ensure you never lose momentum by stocking the heavy-duty blades designed specifically for the H-1.

[→ SHOP ALL OLFA KNIVES & REPLACEMENT BLADES HERE]

• [Olfa HBB-5B 25mm Ultra-Sharp Black Blades] – The ultimate upgrade for the H-1; these black blades are honed for maximum sharpness in dense materials.
• [Sellstrom XP460 Ballistic Safety Glasses] – High-impact eye protection is essential when applying the kind of force the H-1 is built for.
• [Watson 546 Scape Goat Leather Gloves] – The perfect goatskin companion to provide the grip and protection needed for heavy-duty cutting.