DPx Gear Expands its DPx HEFT™ Knife Line with The CHOP™, a Combination Wood Splitter, Axe, Machete and Razor Sharp Camp Tool LAS VEGAS, NV – January 20, 2015 – DPx Gear is expanding its DPx HEFT (Hostile Environment Field Tool) line with the DPx HEFT 12 CHOP, the multi-use wilderness knife for expeditions and …