Antex soldering bits for cs csl and tcs soldering irons antex b1100l0 replacement bit with 23mm long life tip from antex suitable for use with antex cs tcs tc50 sd50 xstc a245 a545 a718 soldering irons manufactured from high grade copper plated first with iron and then chrome to give a long working life antex b1100l0 long life tip 1100l 23mm