Combination ring and open end spanners

The CHANGLU TOOLS combination wrench is a versatile hand tool designed for tightening and loosening hexagonal nuts and bolt heads.

It combines an open-end wrench and a ring spanner in one tool, making it suitable for various assembly, repair and maintenance tasks.

The wrenches are manufactured according to the supplier-declared DIN 3113A standard, which specifies dimensional and construction requirements for combination wrenches.

Available in sizes from 6 to 60 mm, these tools can be selected for both smaller mechanical applications and larger fastening components.

The open end provides convenient side access to fasteners, while the ring end surrounds the fastener head for increased contact.

Each wrench is sold individually, with the required size selected as a product variant.

Two Functional Ends in One Tool

The combination wrench features:

• Open end – convenient when a fastener must be accessed from the side.

• Ring end – surrounds the fastener head and provides more contact surfaces.

This allows users to choose the most practical end for the task.

DIN 3113A Standard

The wrench is specified as complying with DIN 3113A, a standard for combination wrenches.

Standardised dimensions help ensure suitable sizing for metric fasteners.

Wide Range of Sizes

Available sizes from 6 to 60 mm allow users to select the correct tool for different maintenance and assembly requirements.

Smaller sizes are suitable for compact mechanisms, while larger sizes are intended for larger fastening components.

Versatile Applications

Combination wrenches are commonly used for:

• automotive repairs;

• motorcycle and bicycle maintenance;

• agricultural machinery servicing;

• industrial equipment maintenance;

• mechanical workshops;

• structural assembly;

• general household repairs and installation work.