Compare Sterling Insulation Cutting Knife 280mm - Carded Sterling Log in for pricing The multi-purpose Sterling Double Sided Insulation Knife is designed for cutting mineral wool and gliding through polystyrene foam. The stainless steel blade is engineered to stay sharper longer when cutting while the rubber handle provides user comfort. 58-559 Log in for pricing Compare Stock: Qty in Cart: 0 Price: Log in for pricing Subtotal: