WESTWARD 1PZ38 Tap and Die Set Number of Pieces 110 HSS Thread NC NF NPT Size Range 4-40 Through 3/4-16 Metric M6 x 1.0 and M8 x 1.25 Tap and Round Die Size 4-40 6-32 8-32 10-24 10-32 12-24 1/8-27 1/4-18 1/4-20 1/4-24 1/4-28 1/4-32 5/16-18 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1/2-13 1/2-20 9/16-12 9/16-18 5/8-11 5/8-18 3/4-10 3/4-16 Inch M6 x 1.0 M8 x 1.25 NPT Type 1 and 1 1/2 Inches Outer Diameter Solid 1 and 1 1/2 Inch Outer Diameter Adjustable