Bright finish fluteless taps; for use on copper, aluminium, magnesium, brass, zinc etc. Flash chrome finish fluteless taps; for use on steel up to 850N/mm2 tensile strength, free matching and austenitic stainless steel Made to ISO529 standard for tapping blind and through holes in a wide range of ductile materials Smooth non-cutting action produces greater thread formed strength, higher life expectancy and increased tapping speeds especially where excessive tension occurs
