... suitable for dealing with stainless steel, nichrome, titanium alloy, heat-treated steel, cast iron, aluminium alloy, fine aluminium,iron, plastic, ... suitable for dealing with stainless steel, nichrome, titanium alloy, heat-treated steel, cast iron, aluminium alloy, fine aluminium,iron, plastic, ... . 3mm,4mm,5mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,26mm,28mm,30mm. the length can be customerized ...