Hogue Automatics offer impressive speed and exceptional reliability. This A01-Microswitch is another addition to Hogue's quality line of automatic folding knives. It features a 2.75" tumbled stonewashed Wharncliffe blade and matte gray aluminum handles. The Microswitch's unique patent-pending blade retention device allows for one-handed deployment and closure without placing the hand in the path of the blade. The manual safety locks the knife both open and closed to prevent misfiring. Deployment is based around a strong, custom-designed, oversized coil spring that has been extensively tested and integrated to provide force along the pivot's entire range of motion. The result is an automatic that kicks open with authority every time you call on it. Each knife is individually tested and laser-etched with a unique serial number before it bears the Hogue name. Specifications Blade Length: 2.75" Overall Length: 6.60" Blade Thickness: 0.120" Blade Material: CPM-154 Stainless Steel Blade Hardness: 57-59 HRC Blade Style: Wharncliffe Blade Grind: Hollow Blade Finish: Tumble Stonewash Blade Treatment: Cryogenically Treated Handle Material: 6061-T6 Hard Anodized Aluminum with Stainless Steel Baseplate Handle Color: Matte Gray Locking Mechanism: Push Button Automatic Pocket Clip: Deep Carry Tip-Up Reversible with Filler Plate Special Feature: Impact Pommel Designer: Allen Elishewitz Weight: 2.9 oz. Made in the USA