CRKT 1091K MY TIGHE - CRKT has carefully translated Brian's popular My Tighe custom frame-lock folder into an affordable production line, with four models in bead-blast finish and two in black. At first glance, the knife seems like a design exercise until you grasp it and understand that the concave cut scales are craftily shaped to enhance grip, aggressive with contours in just the right places. Outburst Assisted Opening model. Black Blade, Partially Serrated Edge