Thermady DK-FP OxyFuel Gas Hose Repair Kit (Complete Dealer Kit). Streamlined, compact design allows welders to get into tight places. Includes: “A” and “B” size hose fitting with KI2B vise-grip type crimping tool. Contains nuts, nipples, couplers, splicers and ferrules for 1/4" and 3/16" I.D. hose.