Feature: 1. REPAIR DAMAGED OR WORN ONES: This thread repair kit is suitable for M14 repair of damaged or worn threads. The drill is approximately 14.4mm in diameter, which will not fit 1/2in(13mm) drill chucks 2. REPAIR VARIOUS MATERIAL THREADS: This is an excellent choice for repairing damaged threads in steel, iron, aluminum and any metal where threads are peeled, crossed or damaged 3. COMPLETE ACCESSORIES: Thread repair kit includes thread inserts, drill bits, thread taps, insert installation, lug break tool, bring a smooth repair experience How to Use: 1. Use the correct size drill to drill out the damaged threads(provided) 2. Use the provided tap to re drill the holes 3. Load the coiled insert into the applicator 4. Screw the coil into the casting 5. Using the lug fold tool, snap off the tab on the insert 6. The thread is repaired and ready to use Specification: Item Type: Thread Repair Kit Thread Size: M14x1.5mm Thread Insert Material: Stainless steel Tap and Drill Material: HSS Drill Diameter: Approx. 14.4mm / 0.57in Package List: 1 x Thread Repair Kit 1 x User Manual