Nut Driver Bit Wiha 04638 1 pc Chromium-Vanadium Steel 55 mm

The Wiha 04638 nut driver bit is made from high-grade chromium-vanadium steel and is through hardened for durability. It measures 55 mm in length and has a 25.4 / 5 mm shank compatible with DIN 3126 / ISO 1173 style E 6.3 drives. The bit includes a strong permanent magnet to ensure a secure hold on nuts and fasteners, and its lightweight design (approximately 21 g) makes it suitable for repeated use in trade, industry and DIY tasks.

Advantages

Manufactured from chrome-vanadium steel and through hardened for wear resistance. Standardized drive (DIN 3126, ISO 1173, style E 6.3) ensures compatibility with common holders and ratchets. Integrated permanent magnet provides secure retention of nuts and fasteners. Compact 55 mm length offers precise access in confined spaces while remaining easy to handle due to its low weight.

Suitable for

Key specifications

How to use

Insert the 25.4 / 5 mm shank into a compatible holder or ratchet with an E 6.3 drive. Position the nut driver bit over the nut and allow the integrated magnet to hold the fastener in place. Apply steady torque appropriate for the fastener size, avoiding excessive force to prevent damage to the bit or the fastener. After use, clean any debris and store the bit in a suitable holder to protect the tip.

Recommendations

Use the Wiha 04638 nut driver bit with tools and holders that conform to DIN 3126 / ISO 1173 (style E 6.3). Check compatibility with the nut size before applying high torque, and keep the bit clean and dry to maintain the magnet and steel condition.