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 chucks2. 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 damaged3. COMPLETE ACCESSORIES: Thread repair kit includes thread inserts, drill bits, thread taps, insert installation, lug break tool, bring a smooth repair experience4. EXCELLENT PERFORMANCE: Thread repair insert kit is made of accurate stainless steel wire for good strength, wear resistance and durability5. HARD HSS: Taps and drills are made of excellent HSS material with good toughness and higher hardness, durable for a long using timeSpecification:Item Type: Thread Repair KitThread Size: M14x1.5mmThread Insert Material: Stainless steelTap and Drill Material: HSSDrill Diameter: Approx. 14.4mm / 0.57in.Package List:1 x Thread Repair Kit1 x User Manual