Version:
Sturdy shape especially for use with electric or compressed air impact wrenches. With cross hole and snap ring groove for securing sockets. Internal square to DIN 3121.
For safety reasons must always be secured using a suitable locking pin and O-ring.
Standard:
DIN 3129
Material:
Chromium-molybdenum steel, surface manganese phosphated.
Note:
Further sizes and types on request.