Utility knife blade IRWIN 10507102 5 pcs 18 mm

Bi-Metal Blue snap-off blades from Irwin are 18 mm replacement blades sold in a pack of five. Constructed with bi-metal materials, these snap-off blades are designed for precision cutting across a range of materials and fit standard 18 mm utility knives. The blades feature a blue coating and are intended to provide extended sharpness and safer handling during use.

Advantages

Shatterproof construction reduces the risk of blade breakage and improves user safety. Soft snap technology allows sections of the blade to be broken off smoothly when a fresh edge is needed. The bi-metal design helps the cutting edge remain sharp up to three times longer than standard blades, offering more consistent performance over multiple uses.

Suitable for

• Cutting cardboard and corrugated board
• Trimming carpet, linoleum and vinyl flooring
• Scoring drywall and plasterboard
• Cutting plastic sheeting and thin plywood
• General workshop and DIY tasks

Key specifications

• Blade type: 18 mm snap-off bi-metal
• Quantity: 5 blades per pack
• Coating: blue finish
• Edge durability: rated to stay sharp up to 3x longer (manufacturer claim)
• Safety: shatterproof design with soft snap segments

How to use

Install a blade into a compatible 18 mm utility knife according to the knife manufacturer’s instructions. Use the soft snap feature to break off worn segments along a safe edge or by using the tool’s built-in snapper, ensuring fingers and hands are kept clear of the blade. Replace the blade when cutting performance declines or when segments are fully used.

Usage recommendations

Use appropriate personal protective equipment such as cut-resistant gloves and eye protection when changing or snapping off blade segments. Dispose of used blade segments in a blade-safe container to prevent injury.