Tin Coated Spiral Machine Taps 1"X 8Unc, Overall Length 130Mm. Thread Length 32Mm, Shank Dia 18H9, 14Mm Square, Material Shall Be M35. Performance:300 Holes Per Tap To Depth Of 5 2Mm. Make:Addison/Totem/Bilz/Waltair. Brand/Make Offered To Be Indicated. ]