Nut Driver Bit HAZET 1007S-1

The HAZET 1007S-1 nut driver bit is a compact adapter for connecting a 3/4" (20 mm) square hollow drive to a 1/2" (12.5 mm) square solid output. Made in Germany with a phosphatised and oiled surface, it includes a borehole for a locking pin or safety spring and a groove for an O-ring. Total length is 56 mm and net weight is 0.33 kg.

Advantages

Provides reliable conversion between drive sizes while resisting corrosion due to its phosphatised and oiled finish. The borehole for a locking pin or safety spring and the O-ring groove allow secure attachment to tools and accessories. Compact 56 mm length ensures good accessibility in confined spaces.

Suitable for

• Adapting 3/4" (20 mm) hollow drives to 1/2" (12.5 mm) square outputs
• Use with torque wrenches, impact tools, and socket extensions that require secure locking
• Professional automotive, industrial maintenance, and workshop applications

Key specifications

• Brand: Hazet
• Model / MPN: 1007S-1
• EAN: 4000896001804
• Total length: 56 mm
• Drive (input): Square hollow 20 mm (3/4")
• Output: Square solid 12.5 mm (1/2")
• Surface: Phosphatised, oiled
• Features: Borehole for locking pin or safety spring, groove for O-ring
• Net weight: 0.33 kg

How to use

Insert the 20 mm (3/4") hollow drive end onto the tool output and secure it using a locking pin or safety spring through the provided borehole; fit an O-ring in the groove if required for additional retention. Attach the 12.5 mm (1/2") square output to the socket or accessory. Use the adapter only within the torque and usage limits of the connected tools.

Recommendations

Inspect the phosphatised and oiled surface before use and reapply light oil if corrosion protection appears diminished. Ensure the locking pin, spring or O-ring is correctly installed and choose compatible accessories to avoid overloading the adapter.