Material selection and special forging process guarantee optimal functioning and long life.
Can be assembled "blind" due to the bevelled edges on the square socket drive and driven piece.
With "collar" for totally solid but freely interchangeable fit.
Standard:
DIN 3123-B 12.5
External square drives to DIN 3120-A 12.5 with sprung ball, internal square drives to DIN 3120-C 12.5 with grooves.
Material:
Chrome alloy steel, non-flaking, chrome-plated over nickel.
Suitable for :
Manual use.
Square drive: 1/2 in
overall length: 50 mm