BAHCO 6709M-4
The BAHCO 6709M-4 is a 1/4" socket screwdriver bit for 4 mm internal hexagon screws. It is used to tighten or loosen screws with hexagon heads and fits into a manual setup with a 1/4" square drive.
The shank has a knurled surface, allowing the tool to be turned with fingers for free-running fasteners. This is practical for jobs where you want to start or remove a screw without using a machine.
The surface is highly polished, and the tool is made of high-performance alloy steel. This provides a robust, professional socket bit for daily use in workshops, assembly, and service.
It is stated to comply with ISO 1174 and DIN 3120. However, it is not intended for machine use or power tools, so it belongs in the manual toolbox.
See datasheet from the manufacturer
Typical applications
- Manual tightening and loosening of 4 mm internal hexagon screws
- Assembly and service work with 1/4" square drive
- Finger turning of free-running screws via the knurled shank
Specifications
- Manufacturer: BAHCO
- MPN: 6709M-4
- 1/4" square drive socket driver
- For 4 mm internal hex (hexagon) screws
- Knurled shank for finger turning
- Not suitable for machine operation or power tools
- Highly polished finish
- Material: high-performance alloy steel
- Meets ISO 1174
- Meets DIN 3120
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