Hogarthian DIR cutting tool, beloved by veteran cave divers. Traditional hogarthian line cutting tool This simple cutting tool, whose prototype was made by cave divers in Florida, USA, by modifying inexpensive steak knives, was supported by many cave divers at the time. The sheath is very sturdy, and the knife will not slip out even without a stopper. It fits standard 2-inch (5.1 cm) wide belts and harnesses. (Image 5 is a sample image attached to a belt. Belt not included) This item has been stored at home for a long time and was purchased from a diving shop in Florida, USA, a long time ago. * There is some rust on the knife. Please check the images. Although it is not a practical tool in the present day when a variety of cutting tools are overflowing in the market, how about it as a teaching material to talk about the history of cave diving, or as a vintage collection? Cave diving Florida cave country cutting device line cutter technical diving rebreather #DIR #cutting device #cave diving #line cutter #technical diving