Description: brand new and high quality Features: High quality 14mm for spark plug re-wire kit. Designed for cleaning and re-threading for spark plug ports. Includes 1 tap / reamer and 4 different sized inserts. Perfect for repairing damaged for spark plug wires on aluminum engine heads. Convenient and portable for quick, easy to use where the job. Insert size: 3/8 ", 7/16", 1/2 "& 3/4" 5/8 "hex drive slim design tap and solid steel inserts to prevent damaged wires. A must-have kit for professional and home DIY mechanics alike. Designed for professional car mechanics and heavy applications for Spark plug wire repair tool kit. Only the follows package content, other accessories demo in the picture is not included. Specification: Material: Steel Length: app.72mm/2.83in Color: Black Quantity: 1 Set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1x14mm / 5/8 "drive tap / reamer (designed for aluminum heads only) 1x14mm for spark plug insert (3/8 ") 1x14mm for spark plug insert (7/16 ") 1x14mm for spark plug insert (1/2 ") 1x14mm for spark plug insert (3/4 ")