Microscrewdrivers

Microscrewdrivers are compact precision hand tools used to drive and remove screws in small assemblies. They are essential in electronics repair, watchmaking, jewelry, eyeglasses, and model building, where standard screwdrivers cannot safely reach or fit. Typical microscrewdrivers have a short shaft and small, well-defined tips designed to fit tiny screw heads without damaging surrounding parts.

Most sets include interchangeable bits stored in the handle or a small cartridge. Handles may be straight or slightly ergonomic, and some incorporate a ratcheting mechanism for incremental torque. Bits are usually made of hardened steel and can be magnetized to hold screws, though non‑magnetic tips are preferred for sensitive electronics.

Tip geometries include miniature Phillips and flat (slotted), Torx and Torx security, hex (Allen), and occasionally Pentalobe or other specialty blades used by device manufacturers. Sizes range from very small to small enough for consumer electronics; common sets cover a broad spectrum of micro-screw heads but do not cover larger fasteners.

Construction materials typically include high-carbon or S2 steel for long wear resistance, with corrosion-resistant coatings. Handles may be plastic or rubberized for grip. Careful storage, keeping bits dry and clean, helps prevent rust and tip wear.

Use considerations include selecting the correct tip size and geometry to avoid cam-out and screw head damage, applying light, steady torque, and avoiding over-tightening. When working with delicate components, minimize magnetization to prevent interference, and consider demagnetizing tools if required.