Manufactured from chrome vanadium steel for strength and durability and then impacted for extra strength. 1/2" drive so will fit any 1/2" drive Ratchet handle ,Power / Knuckle bar or Impact Gun Wrench etc... The sockets are 12 sided so multi drive so bite onto the side of the appliance a lot more effectively These specially designed 12 point sockets are very rare and can be used for hubs on VAG vehicles. SET INCLUDES THE FOLLOWING; 1 x 24mm socket - 12 point 1 x 30mm socket - 12 point 1 x 32mm socket - 12 point 1 x 14mm hex bit. 1 x 17mm hex bit. Please Note!!! BERGEN are currently rebranding their full product range to US.PRO. They have traded under both names (US.PRO & BERGEN ) for many years but!!!! Are now rebranding EVERYTHING to US.PRO blue & original US.PRO Depending on current stock levels you may receive your item in the original BERGEN brand or the new US.PRO blue brand as the transition is underway. But it is all the same great quality products BERGEN has given since day one! Thank you....