Weidmueller SDK PH2 X 100

The SDK PH2 X 100 is a precision Phillips screwdriver.  "SDK" likely identifies the manufacturer or brand. "PH2" denotes the size of the Phillips head; it's a common size, larger than PH0 and PH1, often used in electronics, machinery, and general assembly. "X 100" likely refers to the dimensions, with the 100 probably indicating the shaft length in millimeters.  Therefore, it's a precision screwdriver with a PH2 Phillips head and a 100mm long shaft, designed for tasks requiring more torque than smaller precision screwdrivers while still offering good control.