Product Overview
The Wiha Professional bit 39181 is a 90 mm hex bit with a 4.0 mm internal hexagon (HEX 4 mm). The product is part of the Wiha Professional bit series and is designed for a 1/4" blade (E 6.3) in accordance with DIN 3126 / ISO 1173 (Form E 6.3). The description below is based on the manufacturer's specified data.
Design and Materials
- Internal hexagon: 4.0 mm.
- Overall length: 90 mm.
- Material: High-quality chrome-vanadium steel, through-hardened.
- Drive: 1/4" (E 6.3) in accordance with DIN 3126 / ISO 1173.
Application-Oriented Description
The Wiha Professional bit 39181 is designed as an interchangeable bit for screw tools with a 1/4" holder. The bit transfers the torque from a standard E 6.3 blade to a 4.0 mm internal hexagon, and its specified overall length of 90 mm makes it suitable for situations where extra reach is needed compared to shorter variants.
Typical Applications
The manufacturer states that the bit is intended for screw connections in trade and industry (general fastening applications). This means that the Wiha Professional bit 39181 is used for common fastening tasks where a 4.0 mm internal hexagon and a 1/4" blade are relevant.
Practical Notes on Use
- Replacement in standard 1/4" bit holders requires a compatible E 6.3 holder.
- The bit's material and hardening type are specified by the manufacturer as chrome-vanadium steel, through-hardened.
Specifications
- Manufacturer: WIHA
- Item number: 39181
- Product name: Wiha Professional bit 39181
- Internal hexagon: 4.0 mm
- Overall length: 90 mm
- Drive: 1/4" (E 6.3), DIN 3126 / ISO 1173 (Form E 6.3)
- Material: High-quality chrome-vanadium steel, through-hardened
- Product dimensions (L x W x D): 90 x 7 x 6 mm
- EAN: 4010995391812
- Weight (PU in grams): 22
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