The Dr. Slick 4" Tungsten All Purpose Straight Scissors have T.C. blades welded onto the scissor blade frame. T.C. is 7x more durable than stainless steel and holds an edge longer.
[This review was collected as part of a promotion.] Excellent scissors, very sharp! I've only used them for trying flies for the last few weeks but they seem like they'll keep their sharpness for a long time.