This is a 5-piece broken screw extractor set, a specialized tool kit designed to remove damaged, stripped, rusted, or broken screws, bolts, and studs. [1, 2]
Key Components
Extractors (Left Side): These five tapered bits feature reverse-cutting threads (spiral flutes). They are made of hardened carbon or alloy steel to provide the high torque needed to grip and turn stuck fasteners. [1, 2, 3]
Tap Wrench/Handle (Right Side): The silver T-handle tool is an adjustable tap wrench used to hold the extractor bits securely and provide the necessary leverage to twist them.