Wiha 26309 Precision Miniature Hex Driver 0.89mm

Product Description

The WIHA 26309 is a precision miniature hex driver engineered for fine fastener work requiring accuracy and control in tight spaces. The driver accepts a 0.89mm hex tip and features a 1-9/16 inch blade length with an overall length of 4-3/4 inches. The blade is constructed from through-hardened steel for maximum durability under repeated torque cycles. The tapered handle measures 3.1 inches in length and is shaped to allow precise finger control during delicate assembly or adjustment tasks. This tool is suited for electronics technicians, HVAC controls technicians, and field service professionals working with miniature fasteners in instrumentation, control boards, and precision equipment.

The WIHA 26309 is used in applications where standard hex drivers are too large or imprecise. Typical installation scenarios include adjusting set screws on sensors, actuators, and terminal blocks, as well as assembling or servicing control panels and small electromechanical components. The compact overall length and tapered handle design make it well-suited for confined work areas and detailed bench work where grip precision matters.

Key Features

• 0.89mm hex drive size for miniature fastener applications
• Through-hardened steel blade for maximum durability and long service life
• 1-9/16 inch blade length suited for shallow access fasteners
• 4-3/4 inch overall length balances reach and control
• Tapered handle with 3.1 inch length provides precise finger-tip torque control

Compatibility

Designed as a precision hand tool for use with 0.89mm hex socket fasteners found in miniature mechanical and electromechanical assemblies across HVAC controls, instrumentation, and electronics service work.

Installation Notes

This tool is used by hand and requires no power source or special installation procedure. When working near energized control boards or terminals, follow lockout/tagout procedures and confirm power is de-energized before inserting any tool into the work area. Apply controlled hand torque only — miniature fasteners are susceptible to cam-out and thread damage from over-torque. Keep the blade tip clean and free of debris to maintain accurate seating in the hex socket.