Features： 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 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 4、 PERFORMANCE: Thread repair insert kit is made of accurate stainless steel wire for good strength, wear resistance and durability 5、HARD HSS: Taps and drills are made of HSS material with good toughness and higher hardness, durable for a long using time 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