Ontario 8609 TAK Survival/Utility Knife, ComboEdge, D2, Green Canvas Micarta Scales, Cordura Sheath. Ontario Knives, TAK-1 D2 Knife, designed by Randall's Training & Adventure (RTA), features a full tang 4.25" D2 drop point blade with a thickness of .1875", 5.75" ergonomic canvas Micarta handle slabs, lanyard hole, and ambidextrous Cordura nylon sheath with multiple lashing grommets. 10" overall, 14oz with sheath, 10oz without sheath.