3/4 inch, 12 point mixed wrench — Proto (black oxide coating)

This high-performance Proto hybrid wrench is designed for heavy-duty professional and industrial use. It combines an open end with a 12-point hex (box) wrench, and features a black oxide coating that provides added corrosion resistance and enhances the tool's appearance over time.

Key advantages

• Size: 3/4 inch — Suitable for imperial gauge bolts and nuts.
• Hybrid design: Open end for quick access and a 12-point box end for better rotating power.
• Black oxide coating: Reduces oxidation and increases corrosion resistance without affecting the accuracy of the handle.
• High strength and durability: Designed to withstand heavy working conditions and frequent use.
• Precise finishing to prevent tool slippage and maintain the integrity of screw ends.

Benefits

• Efficient and fast handling: Easily switch between the open and boxed ends as needed.
• Improved friction and load distribution to reduce damage to screw heads.
• Longer service life thanks to black oxide coating and rust protection.
• Suitable for workshops, industrial maintenance, automotive work and mechanical installations.

Recommended uses

• Maintenance of vehicles and heavy equipment.
• Production lines and manufacturing industries.
• Installation and maintenance work in workshops and field sites.

Suggested specifications

• Type: Mixed wrench (Open-End + 12-Point Box-End)
• Size: 3/4″ (0.75 inches)
• Coating: Corrosion-resistant black oxide
• Brand: PROTO

Care tips

• Clean the key after each use to remove oil and dirt.
• Store it in a dry place away from moisture to reduce corrosion.
• Check the ends regularly and replace the tool when cracks or obvious damage appear.

A key that combines strength, precision, and durability — a reliable choice for professionals and industrial workshops.