The SE Diamond and CR15 Steel Needle File Set (14 PC.) includes an assortment of files shapes, allowing you to work on a variety of projects. Use the needle files for filing, refining, removing, reshaping, and scraping. The comfy quick change handle ensures a firm grip for the best control. Keep this needle file set in the garage or workshop! How to Insert File into Handle: 1. Push and hold the neck of the handle down. 2. Line up the neck and file hex shapes and insert the desired file. How to Remove File from Handle: Hold onto the file and push the neck down, then pull the file out. This 14-Piece Set includes the following file shapes to achieve the desired effects: -EQUALING ? for filing corners and slots -HALF ROUND ? for filing the inside and outside of rings; use in curved and flat surfaces, and tight areas and corners -ROUND ? for enlarging round holes; filing a bevel on curved edges; cleaning out tubing -SQUARE ? for making round holes into square holes; refining slot corners; filing flat and straight angles -TRIANGLE ? for filing the inner surfaces of objects with acute angles -WARDING ? for filing notches; use in narrow spaces CAUTION: Ensure you are holding the file while removing it from the handle. If the file is not held, it may propel you from the handle and cause damage to you or nearby people or objects. Using hand tools can be dangerous. Always wear ANSI approved protective clothing when using this tool. Select the appropriate type and size of hand tools for work. Use only for its intended purpose. Do not use tool if damaged. Do not modify. Keep away from children. This is not a toy. SE is committed to providing the customer with the best source for value possible on the market. You will enjoy the quality, function and usefulness of our SE Diamond and CR15 Steel Needle File Set (14 PC.). IPR Rights Notice: Important: Avoid getting counterfeit items. Genuine SE products come with the SE logo on the packaging. SE is a registered trademark protected by US Trademark Law.