Utility Knife Blade Set Top Tools 17B531 — replacement blades 19 mm and 9 mm

Replacement blade set Top Tools 17B531 contains straight utility blades in two common widths, 19 mm and 9 mm, intended for use with standard snap-off and fixed blade holders. The set supplies spare cutting edges for utility and craft knives used in construction, renovation, packaging and hobby tasks. Blades are designed for manual cutting of cardboard, paper, foil, drywall tape, insulation materials and other similar materials where a sharp, straight edge is required.

Advantages

This blade set provides two widely used blade widths in a single pack, simplifying replacement and reducing downtime. Blades are manufactured to consistent thickness and edge geometry for reliable straight cuts and predictable wear characteristics. Compatibility with standard holders makes the set suitable for both snap-off knives and fixed-blade utility knives, offering flexibility for different cutting tools. The compact packaging keeps spare blades organized and accessible during professional work or DIY projects.

Suitable for

• Precision cutting of cardboard and packaging materials
• Trimming of drywall tape, insulation and flooring underlay
• Hobby and craft projects requiring straight cuts
• General renovation and construction manual cutting tasks

Key specifications

• Blade widths: 19 mm and 9 mm
• Straight-edged utility blade profile
• Intended for manual use in snap-off and fixed blade holders
• Material: hardened cutting steel (standard utility blade material)
• Pack contains multiple spare blades for repeated replacement

How to use

Install the appropriate width blade into a compatible utility knife or holder according to the knife manufacturer's instructions, ensuring the blade is securely locked before cutting. Use steady, controlled strokes and maintain a safe cutting angle to achieve straight, clean cuts. Replace the blade when signs of dulling or chipping appear to preserve cutting quality and reduce the need for excessive force. Dispose of used blades in a designated sharps container or follow local regulations for metal waste.

Usage recommendations

Select the 19 mm blades for broader, heavy-duty cutting tasks and the 9 mm blades for finer detail work or when using narrow holders. For consistent results, pair blades with a stable cutting surface and apply light, repeated passes rather than forcing a single deep cut. Store the blade set in a dry place and handle replacement blades with protective gloves if performing many changes to reduce the risk of accidental cuts.