b'Screwdrivers555JEWELERSWatch and clockmakers, jewelers, opticians, toolmakers and others will find these screwdrivers especially adaptable for fine, delicate work. The swivel knobs are concave to fit the finger and are hexagonal in shape to prevent rolling. Screwdrivers are available individually or in sets.oolS hopF EaturEs For relatively small and very delicate work T S Bodies are made from knurled, nickel-plated steelBlade WidthCat. No. EDP Inch mm Phillips Blade No.555AA 52549 .025 0.6 -555A 52550 .040 1 -555B 52551 .055 1.4 -555C 52552 .070 1.8 -555D 52553 .080 2 -555E 52554 .100 2.5 -555F 52561 - - #0S555Z-6 52564 Set of 6 Screwdrivers555AA, A, B, C, D, EIn CaseS555Z-7 52566 Set of 7 Screwdrivers555AA, A, B, C, D, E, FIn CaseS555Z-7104'