My Tighe Assisted with Veff Serrated Edge 1091 1091: High Satin Blade, Bead-Blast Frame, Combined Razor-Sharp & Veff Serrated Cutting Edge, OutBurst Assisted Opening Blade: Length: 3.625 (9.2 cm); Thickness: 0.124 (0.31 cm); Steel: 1.4116, 55-57 HRC Open: Overall length: 8.125 (20.6 cm); Closed: Handle length: 4.50 (11.4 cm); Weight: 5.6 oz. (159 g) All models feature a removable black plated pocket/gear clip. Each model is available in conventional non-assisted opening models, or with our patented* OutBurst assisted opening mechanism, which instantly springs the blade fully open after you have opened the blade approximately 30 degrees. All have bronze and bearings at the adjustable blade pivot for fast action.