Chave de caixa KWB 372209 1 unid. 76,2 / 8 mm 9 mm

The KWB 372209 nut driver bit is made of CrV steel with a matt chrome plating and a wave profile. It has rounded corners to improve force transmission and to protect the edges of the fastener. The bit is suited for fastening and loosening 9 mm nuts and features a 76.2 / 8 mm shank compatible with standard drivers and bit holders.

Advantages

The CrV steel construction with matt chrome plating provides corrosion resistance and long service life. The wave profile and rounded corners reduce cam‑out and distribute torque more evenly, protecting both the fastener and the bit. The 76.2 / 8 mm shank offers good reach and compatibility with common power and manual drivers.

Suitable for

Key specifications

How to use

Insert the 76.2 / 8 mm shank of the nut driver bit into a compatible bit holder or driver. Place the 9 mm socket end onto the nut and apply steady torque while maintaining axial pressure to ensure correct engagement. For power drivers, start at low speed to seat the bit and increase speed as needed. Inspect the bit and fastener edges regularly and replace the bit if significant wear is observed.

Recommendations

Use the bit with compatible drivers and appropriate torque settings for the fastener size. Avoid excessive impact or side loading to prolong bit life and preserve the fastener edges.