401SM - Williams - 1/4 Female Hex Drive, 5-40 In. Lb. Micro-Adjustable Torque Screwdriver

The Williams 401SM Micro‑Adjustable Torque Screwdriver is designed for precision fastening in low‑torque applications where control and accuracy are critical. Featuring a 1/4" female hex drive and a 5–40 in‑lb torque range, this torque screwdriver is ideal for small fasteners, delicate components, and fine assembly work.

The micro‑adjustable torque mechanism allows for precise torque settings, helping prevent over‑tightening and damage to sensitive parts. Its compact, ergonomic design provides excellent control and comfort, making it well‑suited for repetitive tasks and detailed work in tight spaces.

Built to professional standards, the Williams 401SM delivers consistent, reliable performance across a wide range of applications, from HVACR service and electronics assembly to automotive and industrial maintenance tasks that require exact torque values.