Irwin 25121393 Carbon Steel Hook Utility Knife Blades 5pk

Product Description

The IRWIN 25121393 is a 5-pack of carbon steel hook utility knife blades designed for controlled scoring and cutting tasks. The hooked point geometry lifts the blade tip away from the surface beneath the material being cut, reducing the risk of scoring or damaging substrates during pull cuts. Each blade measures 1.875 inches in cutting length and 0.025 inches in thickness, giving it the rigidity needed for consistent utility work. These blades are used by tradespeople across HVAC, electrical, flooring, and general construction where precise, surface-safe cuts are required.

These hook blades are suited for a wide range of all-purpose cutting applications including carpet, vinyl flooring, insulation, roofing materials, strapping, and packaging. The hooked profile makes them especially practical when cutting materials laid flat on a finished surface, where a straight blade tip would risk gouging the substrate. They are installed in standard utility knives that accept hook-style blades and are commonly kept in tool pouches by installers and service technicians working in both residential and light commercial settings.

Key Features

• Hooked point design protects the surface underneath during pull cuts
• Carbon steel construction provides consistent edge retention for all-purpose cutting
• 1.875-inch blade length fits standard hook-compatible utility knives
• 0.025-inch blade thickness delivers firm, controlled cutting performance
• 5 blades per pack for extended service life between resupply
• Silver finish, no coating or serration for clean, straightforward cuts

Compatibility

Designed for use with utility knives that accept hook-style utility knife blades. Confirm hook-blade compatibility with your specific knife model before installation.

Installation Notes

Blade replacement should be performed by the tool operator following the utility knife manufacturer's blade-change procedure. Retract or lock the blade mechanism before swapping blades, and use a blade disposal container to handle spent edges safely. Gloves are recommended during blade changes. Store unused blades in the original packaging to protect the cutting edge and prevent contact injuries.

Technical Specifications

• Blade Material: Carbon Steel
• Blade Type: Hook Utility
• Blade Length: 1.875 inches
• Blade Thickness: 0.025 inches
• Blade Quantity: 5
• Product Finish: Silver
• Overall Length: 5.800 inches
• Height: 0.300 inches
• Width: 1.900 inches
• Weight: 0.046 pounds
• Cuts Into: All-Purpose
• Sharpenable: No
• Country of Origin: China
• Warranty: Limited Lifetime

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: 25121393