Colour coding for easy size identification - Premium quality S2 steel blades - Hardened & tempered for exceptional strength and durability - Screws can be tightened or loosened at angles up to 25° - Compact and convenient folding holder - Contents of set: 1,5 / 2 / 2,5 / 3 / 4 / 5 / 6 / 8 and 10 mm