The White Deer Blank Blade Damascus Steel Skinner Knife Copper Guard features 4 holes on the tang for attaching your own custom handle, with one hole measuring 5mm, and three more holes measuring appx 3mm. This is a beautifully crafted White Deer Blank Blade Damascus Steel Skinner Knife for DIY and custom makers to add their own handle grip. Damascus for this knife was created by forge welding multiple layers of steel into a solid block called a billet (15N20 & 1095 high carbon tool steel). The billet is folded and re-welded several times to produce several layers. Patterns in the White Deer Blank Blade Damascus Steel Skinner Knife are created by manipulating the steel during the forge welding process. When acid is added to the blade, it attacks the layers of hard and soft steels differently, highlighting the attractive layered pattern in the steel. The combination of layered hard and soft steel creates blade flexibility, toughness and produces invisible serrations on the blade that aid in cutting. The hardness of the Damascus steel is 55-60 HRC on the Rockwell scale. This is a must have for any hunter or outdoors-man! Specifications Overall Length: 11 Inches Blade Length: 6.5 Inches Blade Material: 1095 High Carbon, 15N20 Alloy Steel, Damascus Blade Thickness: 5mm Tang: Full Tang, 1095 HC Steel, Welded to Damascus Sharpness & Functionality: Very Sharp, Ready for Handle Blade Features: Bowie Profile, Thumb Grip Tang Length: 4.125 Inches Tang Hole Sizes: 5mm and 3mm Other Features: Solid Brass Guard Bolstering