An insulated screwdriver is a specialized safety hand tool engineered for driving and removing screws in live electrical circuits and high-voltage applications. Constructed with a alloy steel core, the shaft is fully encased in a protective layer of high-dielectric insulating insulation to protect users against accidental electric shocks (typically rated up to 1000V). Key features include a precision-machined, hardened black slotted/flathead tip for a secure fit into screw heads, a prominent protective slip guard at the handle base to prevent fingers from slipping onto the exposed tip, and an ergonomic dual-color yellow and red anti-slip handle with a hanging hole for convenient tool organization. It is essential equipment for electricians and utility maintenance technicians.