Proxxon 1/4″ Precision Mechanics Set, 39 pieces

Technical Information: Tool Material: chrome-vanadium steel 31 CrV 3 Toolbox Material: steel Drive: 1/4" Functions: 39 Functions 1/4" :standard 1/4" ratchet screwdriver handle 1/4" Socket Wrench Insert 1/4" : SW4 / SW5 / SW6 / SW6.5 / SW7 / SW8 / SW9 / SW1