HT-1 | Mr. BladeLarge robust folding knife. Flipper style knife. D2 steel on the blade for the great edge retention. Tough G10 scales on the handle with the complex interesting grind. HT 1 by Mr. Blade is a good size very tough folding knife. If you like camping and hiking and need a folding knife for tough work HT 1 is for you! HT 1 has a D2 steel blade, durable G10 handle scales on the relatively large handle, and a liner lock system. This is a flipper style folder