Grip-Rite 12.2 in. Fixed Blade Spear Point Insulation Knife Red is built for serious insulation work, delivering precise starts and confident cutting power in a single, durable tool. With a fixed blade that won’t fold or lock, this knife gives you reliable control from the first slice to the last.
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Fixed blade design for straightforward strength, reduced wobble, and easy maintenance—no blade deployment or locking mechanism to worry about on the job.
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Spear-point tip enables precise starting points in tight corners, along edges, and around outlets, helping you initiate clean cuts without wandering.
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Serrated blade excels at sawing through dense insulation materials, foil-faced panels, and fiberglass batt with controlled, efficient action.
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12.2-inch overall length offers a balanced mix of reach and leverage for longer cuts while maintaining precise hand control.
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Red handle provides high visibility on busy job sites, making it easier to spot the tool among other gear.
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Includes one blade in practical clamshell packaging for easy storage and safe transport.
Ideal for professionals and DIYers alike, this insulation knife shines in scenarios like:
- Installing rigid foam board or polyiso insulation where crisp edges matter for a snug fit.
- Trimming fiberglass batt or mineral wool with quick, guided cuts that stay aligned with your layout.
- Starting cuts in foil-faced insulation or vapor barriers, then finishing with the serrated edge for a clean, finished edge.
How this knife elevates your project outcomes:
- Combining a precise spear-point start with aggressive serrated cutting reduces the number of passes needed, speeding up installations.
- The fixed blade design provides stable, predictable cuts, helping you achieve consistent edge quality across all joints and seams.
- High-visibility red handle keeps the tool accessible and reduces downtime spent hunting for the right utensil on a crowded job site.
Specifications at a glance
- Product: Grip-Rite 12.2 in. Fixed Blade Spear Point Insulation Knife
- Overall length: 12.2 in
- Handle length: 4.33 in
- Blade type: Serrated
- Opening style: Fixed blade
- Style: Spear Point
- Color: Red
- Packaging: Clamshell
- Number of blades included: 1
Tips for best results: Start with the spear-point tip to lay out your cut line, then use the serrated edge to efficiently saw through insulation materials. Pair with a straightedge for long, clean runs, and wipe the blade clean after use to preserve its edge and performance.
