Burchtree Bladeworks custom knives Burch Les Grail 1 of 2 flipper knife with a beautiful stonewashed superconductor inlay on a stonewashed titanium liner lock knife by Micheal Burch with bronzed pocket clip and copper back spacers. This Burch knife has a gorgeous hamon blade that flips like a dream with a perfect edge, detent, action and early lock-up.