Features :

•  According to standard 373
•  6-piece: for M3 / M4 / M5 / M6 / M8 / M10 mm screws
•  HSS
•  Sizes 6.5 x 3.2 mm / 8 x 4.3 mm / 10 x 5.3 mm / 11 x 6.4 mm / 15 x 8.54 mm / 18 x 10.5 mm
•  Quality grade fine for countersunk screws and nuts according to DIN 74
•  Practical OPTIMUM plastic cassette