Purpose-built for fast, clean cuts in common insulation materials, the MK46000 pairs a sharp, rigid blade with a comfortable molded handle so you can size batts, trim duct wrap, and score foam board without tearing or crumbling. Lightweight yet tough, it’s the dependable jobsite knife you reach for when you need straight lines, square edges, and tidy cutouts.
Features
- Sharp, rigid blade designed to slice fiberglass/mineral wool batts and score/cut rigid foam boards (EPS/XPS/polyiso) with control.
- Thin blade profile for straight, low-effort passes and precise trim work around studs, hangers, and penetrations.
- Molded plastic handle that’s lightweight, solvent-resistant, and shaped for a secure, non-slip grip—gloved or bare-handed.
- Tapered tip to start plunge cuts and make clean corners and outlet/window cutouts.
- Durable jobsite build engineered to hold an edge and stand up to daily use; easy to touch up with a stone or file.
- Low-mess cutting helps reduce fiber pull-out and crumbling on foam for neater installs and better fit.
Specifications
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Blade:
- 3⅝″ high-carbon spring steel, precision ground
- Double-beveled on all three edges for smooth, versatile slicing
- Hardened and tempered to balance rigidity (for control) and flexibility (to avoid snapping)
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Handle:
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Plastic, anti-roll handle, ergonomic for grip and control
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Overall Size:
- 7½″ long — ideal balance between reach and maneuverability
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Weight:
- Approximately 0.15 lb (68 g)
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Made in the USA, meeting professional-grade standards