Screwdriver Wera 352 SW 4.0 x 100 mm ball head

The Wera 352 SW 4.0 x 100 mm ball head screwdriver is a compact hand tool designed for precise work on slotted (flat-head) screws where access is limited or an angled approach is required. Its 4.0 mm blade width and 100 mm shaft length combine control with reach, while the ball head enables operation at slight angles to the screw axis without compromising torque transfer. The tool is intended for mechanical, electrical and maintenance tasks that demand careful positioning and consistent fastening force.

Advantages

This Wera screwdriver provides reliable contact with slotted screw heads thanks to a precisely shaped tip and robust shaft. The ball head geometry allows engagement at offsets of several degrees, improving accessibility in cramped or obstructed locations. The relatively short overall length enhances control and feedback during delicate fastening and loosening operations. Crafted to meet professional standards, the tool balances accuracy and durability for repeated use.

Suitable for

• Fastening and loosening slotted screws in confined spaces
• Electrical and electronic assembly where angled access is necessary
• Maintenance and repair work on appliances, control panels and machinery
• Precision tasks in workshops and production lines requiring controlled torque

Key specifications

• Blade type: slotted (flat) tip
• Blade width: 4.0 mm
• Shaft length: 100 mm
• Ball head: allows angled operation of several degrees from axis
• Handle style: ergonomic design for controlled grip and torque transmission
• Construction: hardened steel shaft for strength and wear resistance

How to use

Select the screwdriver so the 4.0 mm slotted tip matches the screw slot width to ensure proper contact. Insert the tip into the screw slot and apply axial pressure while turning the handle. If direct alignment is not possible, engage the screw using the ball head at a slight angle; maintain steady pressure to keep the tip seated and avoid cam-out. Use controlled force appropriate to the screw size and material to prevent damage to the screw head or workpiece.

Usage recommendations

Inspect the tip before use for wear or deformation; replace the tool if the tip is rounded or damaged. For electrical work, confirm the screwdriver is suitable for the specific safety requirements of the task. Store in a dry place and avoid excessive torque beyond the capacity of the screw to preserve tip geometry.