M390 tremendously steel (60-62 HRC). FeaturesAXIS Assist locking mechanism. Osborne Design. These spring supported models blend velocity and stamina in one total bundle. This Storm gets an upgrade along with G10 as well as aluminum manages and also M390 very steel (60-62 HRC). Closed: 4.75' (12.10 cm). SpecificationsBlade Length: 3.60' (9.10 centimeters). Open: 8.35' (21.20 cm). A number of cutter types as well as measurements; Array of take care of products readily available. Deal with Fullness: 0.65' (16.51 mm). Blade Fullness: 0.121' (3.07 mm). Made in U.S.A.. Weight: 5.2 oz. (147.41 g). Relatively easy to fix tip-up wallet clip. G10 and also light weight aluminum deals with.