Titanium coated for sharper, more precise cuts * Made to exact specifications from long lasting tool steel * Sets include prcise drills to match the taps * Includes: 6-32 NC, 8-32 NC, 10-24 NC, 1/4 inch-20 NC, 5/16 inch-18 NC, 3/8 inch-16 NC, 7/16 inch-14 NC, 10-32 NF * Also includes adjustable tap wrench and hex die holder