Simply buy Insulation knife with 1 blade, 140 mm long

Craftsman 7-1/4 in. D X 5/8 in. Plywood Carbon Steel Circular Saw Blade 140 teeth 1 pk - Ace Hardware

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PRODUCT SPECIFICATIONS: This product is made from 50mm wide carbon steel. Both the handle and holster are made from impact-resistant plastic. Holster

Hultafors 389010U Insulation Knife FGK,orange

What are your guy's thoughts on tungsten carbide blades? Showed here is one by Sandrin knives : r/knives

BaiCarre Stainless Steel Insulation Knife,Garden Knife with Yellow New Handle, 11 Double Side Utility Sod Cutter Lawn Repair Garden Knife with

VEVOR Hot Knife Foam Cutter, 155W, Styrofoam Cutter Foam Cutting Tool Kit with Heavy-duty Case

Insulation Knives

BPS Knives Bushmate Designed by DBK - Bushcraft Knife - Fixed-Blade Carbon Steel Knife with Leather Sheath and Firestarter - Outdoor Full Tang Knife - Camping Survival Knives : Sports & Outdoors

TOUGHBUILT Insulation 1-in 1-Blade Utility Knife in the Utility Knives department at

Milwaukee 6 in. Smooth Blade Insulation Knife 48-22-1921 - The Home Depot

Metal knife with a broken blade Yato YT-7581 - Botland - Robotic Shop

Meat Grinder Blade 47mm 49mm Stainless Steel Knife Cutter for Grinders 1 Set | Harfington