chisels
osg 2840501 spiral point tapplugs o1 4 28
spiral point tap right hand tap style plug size 1 4 in . pitch 28 material high speed steel e steam oxide finish overall length 2 1 2 in . thread length 1 in . shank dia . 0.255 in . number of flutes 3 thread type unf pitch diameter limits h6 list number 280 standards ansi br b features b ul li material high speed steel e li li application for cutting internal threads cast iron carbon steel alloy steel die steel stainless steel and hardened steels li li finish steam oxide li li flutes 3 li li item spiral point tap li li overall length in . 2 1 2 li li package quantity 1 li li pitch diameter limits h6 li li pitch 28 li li size 1 4 li li tap style general purpose li li thread length in . 1.000 li li thread type nf unf li li type plug li li standards ansi li li shank dia . 0.255 li li list number 280 li li overall length mm 63.500 li ul