Gas Lens Collet Body, 1 8 in, Used on 9, 9FMT, 20, 22, 25 Torches, Small ORS NASCO requires less pressure to roll requires less pressure to roll down and slow recovery rate allows for plenty of time to correctly insert in ear canal Distinct warning color makes compliance checks easy Maxi Drive allows 15% more torque to applied to the fastener and helps reduce fastener rounding Box end employs the Maxi Drive system Gas lenses provide a more efficient stream of shielding gas to the welding process The gas lens virtually eliminates turbulence in the gas shielding stream as it emerges from the nozzle Two piece construction