Everhard MK46000 - Insulation Knife (Plastic Handle)

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.

Key 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.

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)
  

Handle: Plastic, anti-roll handle, ergonomic for grip and control

Overall Size: 7½″ long — ideal balance between reach and maneuverability

Weight: Approximately 0.15 lb (68 g)

• Grip the knife handle firmly with your dominant hand.
• Align the blade edge with the surface of the insulation you want to cut.
• Push the knife forward steadily, using the full length of the blade to score and cut through the material.
• For deeper or thicker cuts, repeat the pass or apply more pressure gradually.
• Use smooth, controlled motion to prevent blade binding or tearing of the insulation.
• After cutting, wipe the blade clean of any debris or dust.
• Store the knife in a sheath or safe compartment to protect the blade edge and avoid injury.

Q: What insulation materials is it best for?
A: Fiberglass/mineral-wool batts, duct wrap, and rigid foam boards (EPS/XPS/polyiso). Slice batts with long strokes; score foam boards and snap for clean edges.

Q: Can the blade be resharpened?
A: Yes. The precision-ground, high-carbon spring-steel blade can be touched up with a fine file or honing stone. Avoid overheating; wipe clean and lightly oil after use.

Q: What are the size and weight?
A: Overall length is 7½″ with a 3⅝″ blade; weight is about 0.15 lb (≈68 g)—light for control without hand fatigue.

Q: What’s the handle like?
A: A molded, anti-roll plastic handle shaped for a secure, non-slip grip—comfortable with or without gloves; Made in the USA to professional standards.