X-Long Cut Insulation Knife 5" blade MK46300

Goldblatt Insulation Knife 8Inch Stainless Steel Blade Double Side Utility Knife

Everhard Long Cut Insulation Knife With 3-5/8" Long Blade (MK46000)

50-Pack Utility Knife Blades, Titanium Fully Plated, Durable SK-2 Razor Blades

Craftsman Snap Off Blade Knife Heavy Duty Cutting for Insulation Linoleum

Goldblatt 8" Insulation Knife Stainless Steel Double Side Blade Utility Knife

Everhard Square Point Knife 4 X 1 Guard PH RCG