Knives of Alaska Xtreme Yukon 1 D2 Knife Suregrip Handle Black. Model 1 features a grooved thumb choil for increased grip comfort and safety. The Model 1 also includes an edge on the back of the blade extending from the point for 1 3/4in. Blade steel finished in our popular hunter's non-glare matte finish. Specifications for Knives of Alaska Xtreme Yukon 1 D2 Fixed Blade Knife: Manufacturer: Knives of Alaska Blade Length: 3.75 in Overall Length: 8.5 in Blade Material: D2 Steel Knife Application: Fixed Blade Included Accessories: Leather Sheath Handle Material: Suregrip Blade Finish: Tumbled Sheath Material: Leather Package Type: Box Additional Features: Rockwell Hardness - 59-61 Bevel 18-20deg Country of Origin: USA Features of Knives of Alaska Xtreme Yukon 1 D2 Fixed Blade Knife: Metal: D2 Steel; Rockwell Hardness: 59-61; Bevel 18deg-20deg; Knife Length: 8-1/2in; Blade Length: 3-3/4in Included Accessories: Leather Sheath Package Contents: Knives of Alaska Xtreme Yukon 1 D2 Fixed Blade Knife Knives of Alaska 00820FG: Xtreme Yukon 1 D2 Knife Suregrip Handle Black