Precision screwdriver Wiha PicoFinish 42380 — 167 mm length, single blade, 20 g

Wiha PicoFinish® precision screwdriver model 42380 is a finely balanced, insulated single-blade tool with a total length of 167 mm and a lightweight 20 g construction. Designed for delicate assembly, electronics, watchmaking and fine mechanical work, the long slim handle and quick-turning zone provide precise tip control while reducing the risk of damage to small workpieces. The rotating cap features printed screwdriver symbols for quick profile identification and the tool is individually tested to IEC 60900 for safe use on live parts up to 1,000 V AC.

Advantages

The slim ergonomic handle with a soft zone ensures comfortable, controlled operation and supports careful power transmission for precision screwdriving. The extra-long rotating cap allows for smooth, sensitive turning and optimum feed, making fine adjustments easier. Each tool is individually tested at 10,000 V AC and approved for working on live parts up to 1,000 V AC, providing verified electrical insulation.

Suitable for

Key specifications

How to use

Select the appropriate PicoFinish screwdriver profile using the printed symbol on the rotating cap. Position the slim handle between thumb and forefinger for precise control and use the smooth-running rotating cap to apply delicate turning motions. Work with light, steady pressure to avoid damaging small fasteners or workpieces; the handle design supports controlled torque transmission for accurate fastening.

Recommendations

Use the Wiha PicoFinish 42380 for tasks requiring fine control and minimal contact force; inspect the tip and insulation before use and avoid excessive torque beyond small fasteners’ limits. For electrical work, verify the tool’s insulation integrity periodically and follow applicable safety procedures when working on live circuits up to 1,000 V AC.