The TengTools 210712 is a 40 mm long hex (Allen) bit with a 12 mm hex shank drive, designed for use with compatible bit holders or power tool adapters. It is used for driving internal hex fasteners (HEX 12 mm) and is manufactured from durable tool steel to DIN 3126 / ISO 1173 standards, making it suitable for professional workshop and industrial applications where strong torque transfer and reliable fitment are required.
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