... T30, T35, T40four-wing bits: 1, 2, 3, 4metric hex bits: 1.5, 2, 2.5, 3, 4, 5, ... 5.5, 6, 8mmclutch bits: 1, 2, 3fractional hex bits: 1/16, 5/64, 3/32, 7/64, ... 7/32, 1/4dodecagonal 'star' bits: M5, M6, M8metric hex with centre bits: 2, 2.5, 3, 4, 5, ... 6mmfractional hex with centre bits: 5/32, 9/64, 1/8, ... ! Factory Direct Sale 100-Piece Security Bits Set with Hard Storage Case