This information comes directly from the manufacturer's product description and details the construction

Material: Chrome vanadium steel 31CrV3

The pliers are equipped with a Bio spring

Reference: See manufacturer's product page

The product is described in the Model 6115 datasheet (DS-6115_V16) under ordering information as an accessory designed for hands-free control

Torque wrench DREMOMETER DX 3/4" 520-1000 Nm Unit(s):Pcs This information comes directly fromProduct Description This torque wrench, Torque wrench DREMOMETER DX 3 4" from GEDORE, is designed for controlled tightening in the range of 5201000 Nm (380730 lbfft). The tool features a 3 4" square drive with pin locking in accordance with DIN 3120 B 20 and ISO 1174. The torque wrench comes with a traceable test certificate and is classified according to DIN EN ISO 6789 2: 2017 Type II Class A. Function and Mechanics Automatic short path release with