TAC Force Spring Assisted Knife 3in 3CR13 Stainless Steel Karambit Half-Serrated Black Blade Aluminum Handle Blue. This knife by TAC Force features a partially serrated stainless steel blade with a skeletonized handle. For those who prefer a non-reflective finish the gun metal grey of the handle is a perfect match for the exposed black 3Cr13 stainless steel blade. At 8.5 inches in total length the Spring Assisted Knife is a big hit in a small package. The blade deploys with a simple push of the thumb stud and is deployed with a burr-like flick of the wrist. It's equipped with a deep carry pocket clip making it highly accessible for any application. Specifications for TAC Force TF-972 3in Spring Assisted Knife: Manufacturer: TAC Force Blade Length: 3 in Blade Material: 3Cr13 Serrated: Partial Overall Length: 8.5 in Handle Material: Aluminum Handle Length: 5.5 in Handle Color: Blue Handle Finish: Anodized Blade Finish: Black Blade Shape: Karambit Opening Method: Spring Assisted Additional Features: Clip Color: Blue Package Contents: TAC Force TF-972 3in Spring Assisted Knife TAC Force TF-972BL: TF-972BL Spring Assisted Knife 3in 3CR13 Stainless Steel Karambit Half-Serrated Black Blade Aluminum Handle Blue