Multi-size Combination Wrench

The HW-316 is a 14-in-1 metric and imperial palm-size quick-adjust wrench. Its dual-ended design accommodates multiple nut sizes, with metric and imperial markings on the tool. The sliding adjustment changes sizes quickly and is suitable for a portable toolkit.

It is suitable for home repair, bicycles, equipment assembly, machinery maintenance, and general plumbing and electrical work. It provides a portable option when several common sizes are needed but carrying a complete open-end wrench set is undesirable.

One tool combines multiple common metric and imperial sizes, reducing the number of tools and search time. It is not a continuously adjustable wrench, so confirm that the selected position fits the nut before use.

The markings help identify the corresponding size quickly and reduce mixing of similar metric and imperial fasteners. If the nut is worn, judge by actual fit rather than the marking alone.

The sliding mechanism changes between sizes quickly. After adjustment, confirm that it is fully engaged before applying force. Loading it before it is locked can cause slipping or damage the mechanism.

Keep the load-bearing surfaces fully seated on the nut and pull smoothly, avoiding sudden impact. Do not add an extension pipe for leverage or use the tool as a hammer or pry bar.

It is suitable for correctly sized hex nuts and bolts. Use water-pump pliers, a socket, or a torque wrench instead for round pipe, severely corroded fasteners, special profiles, or precision-torque work.

Keep fingers out of the sliding-jaw and load areas during adjustment. Remove oil from the nut and inspect the tool for cracks before applying force. When working at height, also prevent the tool from falling.

Remove water, oil, and metal debris after use. Apply a small amount of oil to the sliding parts and keep the locking grooves clean. Stop using the tool if the lock becomes loose, edges chip, or the body deforms.

The HW-316 emphasizes multiple sizes and portability. For high torque, precise torque application, or prolonged repetitive work, a correctly sized socket or fixed wrench is generally more stable.