Wiha 28595 Screwdriver Insert Bit Set 53 Piece

Product Description

The WIHA 28595 is a 53-piece screwdriver insert bit set designed for professional technicians who need a single organized solution for multi-drive fastener work. The set covers seven drive types: Hex, Phillips, Slotted, Square, Torx, Posidriv, and Tri-Wing. Torx sizes run from T-6 through T-25, hex sizes are available in both inch and metric increments, and Phillips and Posidriv points cover sizes 0 through 3. This range makes the set well suited to HVAC, electrical, and mechanical service work where varied fastener types are encountered on the same job.

The WIHA 28595 is intended for trade professionals who routinely work across multiple equipment types and need bit coverage without carrying multiple sets. Typical applications include service calls on HVAC equipment, control panel work, electrical enclosure access, and pool or mechanical equipment maintenance where Torx, Phillips, and slotted fasteners appear together. The Tri-Wing bits extend utility to consumer electronics and specialty equipment fasteners. The full set covers a wide enough range to handle most commercial and residential service scenarios encountered in a single kit.

Key Features

• 53 pieces covering Hex, Phillips, Slotted, Square, Torx, Posidriv, and Tri-Wing drive types
• Torx range T-6 through T-25 for small-screw HVAC and electronics work
• Inch hex sizes: 1/16, 3/64, 5/64, 7/64, 9/64, 1/8, 5/32, 3/16 inches; metric hex sizes: 1.5 mm through 8 mm
• Phillips and Posidriv points in sizes 0, 1, 2, and 3
• Slotted sizes 4.5 mm through 8 mm
• Square drive sizes 1, 2, and 3 included
• Tri-Wing sizes 1 through 4 for specialty fasteners

Compatibility

Designed as a general-purpose insert bit set compatible with standard 1/4-inch hex bit holders, power screwdrivers, and manual bit-handle tools used in HVAC, electrical, and mechanical service applications.

Installation Notes

Insert bits should be seated fully into the bit holder before applying torque to avoid cam-out or tip damage. When working on live electrical panels or control boards, follow NFPA 70E lockout/tagout procedures and de-energize equipment before accessing fasteners. Select the correct bit size for each fastener head to prevent stripping, particularly on smaller Torx and Tri-Wing fasteners common in control assemblies.