Attributes . Standard 6-Point: 3/8 in , 7/16 in , 1/2 in , 9/16 in , 5/8 in , 11/16 in , 3/4 in , 13/16 in , 7/8 in , 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, 20 mm, Standard 6-Point: 7/16 in , 1/2 in , 9/16 in , 5/8 in , 11/16 in , 3/4 in , 13/16 in , 7/8 in , 15/16 in , 1 in , 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, Standard 6-Point:5/32 in , 3/16 in , 7/32 in , 1/4 in , 9/32 in , 5/16 in , 11/32 in , 3/8 in , 7/16 in , 1/2 in , 9/16 in , 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm . Names