Hex Key Set - 13 Piece Set - Imperial

'Imperial' refers to the measurement system used, which is common in the United States and some other countries. This set includes sizes like 1/4", 3/8", etc., as opposed to metric sizes like 6mm or 10mm.

No, this set is specifically designed for imperial (SAE) measurements. Using imperial keys on metric fasteners, or vice versa, can lead to a poor fit, damage to the tool, and stripping of the fastener.

These sets are commonly used for assembling furniture, performing bicycle maintenance, working on appliances, and various general repairs and DIY projects where hexagonal-headed screws and bolts are present.

The set typically comes with a holder designed for organization. Keeping them in this holder and storing the holder in a toolbox or drawer is the best way to prevent loss and keep them readily accessible.

The product information does not specify if these hex keys are magnetic. Standard hex keys are often not magnetic unless specifically stated.

The Manufacturer Part Number (MPN) for this Mehr Hex Key Set is TL346.

Verify that you are using the correct imperial size. Ensure the fastener head is not damaged or worn. Try a different hex key of the same size if available, as manufacturing tolerances can vary slightly.

Ensure you are not applying excessive force or using the hex key for prying. Check if the fastener is excessively tight or rusted, which may require a penetrating oil or a specialized tool. If the hex key is consistently deforming under normal use, it may be a defective unit.

Check the holder for any debris or obstructions. Ensure the hex keys are clean and dry. If the holder is slightly warped, gentle manipulation may free it, or consider a different storage solution.