13 Piece Drill Bit Set in a Convenient Carrying Case - Sizes:1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64,7/32, 15/64,1/4 Inch This 13 piece drill set comes in a convenient carrying case with bit sizes engraved for organization They are high performance, industrial quality bits. The standard sizes:1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64,7/32, 15/64,1/4 (inch Metric sizes 1.5, 2.0, 2.5,2.0, 3.2, 3.5, 4.0,4.5, 4.8, 5.0,6.0,6.5(mm)