Features: brand new and high quality All tools are equipped with convenient carrying cases, easy and rapid collection and placement. Suitable for recovering damaged threads, suitable for engine repair and other automotive applications. The LT has an HSS tap on each size, an HSS bit of each size, 2 insert tools for each size, thread insertion of each size, is completed in a convenient storage housing. The thread repair kit is used to repair or replace damaged or stripped internal threads. There are 131 pieces of the kit, all of which are made according to professional standards. Specifications: Material: Iron Package Size: Approx.13x7x3cm/5.12x2.76x1.18 Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 5x Twist Drill Bits 5x Break Pin Tools 5x Installation Tools 1x Hex for Key 5x Taps 1x Storage for Case 110x Wire Thread Inserts