US PRO Tools 110 Piece Tap And Die Set - AF & Metric

A tap is used to cut or create internal threads (e.g., in a hole), while a die is used to cut or create external threads (e.g., on a bolt).

Cutting oil reduces friction, helps to remove metal shavings, and improves the quality of the threads.

You need to match the thread size and pitch of the fastener you are working with. Refer to a thread size chart if you are unsure.

The set is suitable for use on a variety of metals, but some harder materials may require specialized tools or techniques.

Store the set in its case in a dry place to prevent rust and damage.

Use a tap extractor tool to carefully remove the broken tap. Be patient and avoid applying excessive force.

A taper tap is used to start the threads, a plug tap is used for general-purpose threading, and a bottoming tap is used to cut threads close to the bottom of a blind hole. Choose the tap based on your needs.

Ensure the correct size and type of tap or die is being used. Apply sufficient cutting oil and avoid excessive force. If the tap breaks, use a tap extractor to remove the broken piece.

Ensure you are using the correct size tap or die for the fastener. Make sure the tap is aligned properly. Proceed slowly and carefully, and use cutting oil.

Make sure the die is the correct size. Ensure the bolt threads are clean and free of damage. Apply cutting oil and start gently.

Apply cutting oil, and ensure you're using the correct tap drill size. Check for any obstructions in the hole and make sure you're not using too much force.