Lansky Sharpeners Cold Steel Sharpener. The special grooves in the Lansky Cold Steel Sharpener exactly match the mini serrations found on Cold Steel knives. The honing steel has safety thumb rests to keep your hand protected during the honing process and the included keychain keeps the Lansky Cold Steel Knife Sharpener close at hand when needed whether at home or in the field. Specifications for Lansky Cold Steel Sharpener for Serrated Blades: Manufacturer: Lansky Sharpeners Overall Length: 4.13 in Serrated: Serrated Blade Material: Steel Features of Lansky Cold Steel Knife Sharpener: Customized for Cold Steel serrated knives Thumbrests for easy sharpening Attached keychain included Package Contents: Lansky Sharpener for Cold Steel Serrated Knives Lansky Sharpeners LTRCS: Cold Steel Sharpener