Half Round File, 16 in, Bastard Cut ORS NASCO PVC injection molded footwear is PVC injection molded footwear is 100% waterproof to ensure workers' feet are dry and comfortable PVC formulation is resistant to degradation from agricultural chemicals and better balanced design for maximum performance and accessibility Xtreme Leverage Technology (XLT™) increases performance and reduces hand fatigue Laser heat treated cutting edges perform better and last longer Precision machined knife and anvil style cutting edges ensure perfect mating for superior performance and longevity Forged high carbon US steel for maximum strength and durability is specially coated for ultimate rust prevention Used on concave flat on opposite Flat sides of all half round files are double cut Backs of all 4 in and 6 in files are single cut Backs of all half round second cut files are longer than 6 in are double cut