RBT™. In addition to being a secure carry platform for the two standard CTC sight adjustment Allen wrenches, the Range Bag Tool (RBT™) is a shooters utility pocket tool designed by Glenn Klecker. It has a 1.775" high carbon stainless steel blade with a Combined Razor-Sharp & Triple-Point™ Serrated edge, fold-out screwdriver blades, both flat and Phillips, plus a bottle opener. The two CTC Allen wrenches are securely held in slots between the stainless steel InterFrame and Zytel® scales. A removable stainless steel pocket/gear clip is included.