STAHLWILLE 447A series Series Square Spline Drive Adaptor, 50.8 mm, 21 x 9.2 / 19 x 11mm Insert, Gunmetal Finish

The STAHLWILLE spline drive ring socket is made up of high performance steel which is modified setting on torque wrench. That has used for external spline drive screws and it is ideal for working in tight space.

Gunmetal finish material
Extremely resilient