Permanent size markings located above the shank for increased visibility (Ø 3.0mm and above only). No-slip shank with 3 flats eliminates slipping in the chuck (Ø 5.0mm and above only). 1, 1.5, 2, 2.5, 3, 3.2, 3.3, 3.5, 4, 4.2, 4.5, 4.8, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13mm drill bits.
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