Screwdriver Bit Set Wiha 42539

The Wiha 42539 screwdriver bit set contains 25 PH2 Phillips bits, each 29 mm long, supplied in a compact, sturdy box weighing 162 g. The set is designed to simplify selection by focusing on screw tip geometry rather than varying tool or fastening types. Colour-coded fluorescent coating improves visibility and reduces loss; a patented torsion zone enables use with power tools and impact drivers while extending bit life compared with standard bits.

Advantages

The multitalented TY concept allows a single bit type to fit multiple screw shapes, streamlining bit selection. The patented torsion zone provides shock absorption for use with impact screwdrivers and power tools and delivers a significantly longer service life than standard bits. Fluorescent, colour-coded coating makes bits easier to find, including under UV light, which lowers replacement costs.

Suitable for

• Mounting and fastening tasks with PH2 screws
• Use in workshops, service vans and home DIY projects
• Work with power drivers and impact screwdrivers
• Applications requiring quick bit identification and reduced loss

Key specifications

• Brand: Wiha
• Model / MPN: 42539
• EAN: 4010995425395
• Contents: 25 × PH2 bits
• Bit length: 29 mm
• Packaging: sturdy box
• Weight (set): 162 g
• Features: fluorescent colour coating, patented torsion zone, suitable for power/impact drivers

How to use

Select a PH2 bit from the box and insert it into the screwdriver or bit holder. For hand tightening, apply steady pressure and turn at a controlled speed. When using power drivers or impact screwdrivers, ensure the bit is fully seated in the chuck or holder and use appropriate torque settings. After use, return bits to the box to keep the set organised and protect the fluorescent coating.

Usage recommendations

Use the Wiha PH2 bits for screws matching PH2 geometry. Avoid excessive torque beyond the tool or screw rating to preserve the torsion zone and extend bit life. Store bits in their box and keep away from abrasive contact to maintain the fluorescent coating.