KS Tools 700.1428 Adapter, AG UN 1.1/2 Inch Inner Thread M16 x 2

This construction is far superior in both strength and compliance with exact torque length All sk interchangeable heads are made from a single piece of alloy steel Dovetail design provides an exceptionally strong connection and allows full head replacement across the full spectrum of torque ranges, Weight: 0.9259415004 pounds, Manufacturer: KS-Tools Werkzeuge-Maschine