Wiha 79443 Screwdriver Insert Bit Set 11 Piece

Product Description

The WIHA 79443 is an 11-piece screwdriver insert bit set designed for use with quick-release drivers and bit holders. The set covers three common drive types — Phillips, slotted, and Torx — making it a compact, multi-application solution for electricians, HVAC technicians, and other trade professionals who need reliable fastening tools on the job. The kit includes a quick-release holder for fast bit changes without tools. At 0.27 pounds, the full set is lightweight and easy to carry in a tool bag or service kit.

This insert bit set is suited for residential and light commercial service work where a variety of fastener types are encountered in a single installation or repair. Electricians will find the slotted and Phillips bits useful for panel and device work, while HVAC technicians will appreciate the Torx sizes for equipment covers and access panels. The set is packaged as a complete kit requiring no additional bits for the included drive types.

Key Features

• 11-piece set covering Phillips, slotted, and Torx drive types in a single kit
• Phillips sizes included: No. 0, No. 1, No. 2, and No. 3
• Torx sizes included: T-10, T-15, and T-20
• Slotted sizes included: 5.5 mm, 6.5 mm, and 8 mm
• Includes a quick-release bit holder for tool-free bit changes
• Lightweight at 0.27 pounds for easy transport in a service bag

Compatibility

Designed for use with standard quick-release screwdriver handles and power tool bit holders that accept insert-style driver bits.

Installation Notes

Insert bits should be seated fully into the quick-release holder before applying torque to avoid cam-out or bit ejection. Inspect bits for wear or rounding before each use, and replace worn bits to protect fastener heads. When working near live electrical panels or energized equipment, confirm power is isolated at the breaker before driving any fasteners on enclosures or devices.