well, got my new wolf 200 tig/mma inverter though the door yesterday (£160, bargain) , all ready to have a go at tig, and then realied i needed tungstens, so had to settle for a shot af the arc instead! its good! but thats another thread...., but as the title says, how long do the tungstens last when welding? i can only seem to find them in packs of 10 and can i use gas rods for tig? just mild steel btw. thanks.