Helicoil Thread Repair Eco Kit UNC 1 4 x 20 Coil Spring Compressors XSMALL Code: MO INT XS XSMALL Code: MO INT XS 21pc Z Series Socket Set Metric 8 32mm (6 pt)Compact Designed 5 14mm shorter than standard for working in confined spaces Tolerance Hexagon Opening Precisely controlled to achieve a very positive fit between bolt and socket Tolerance Square Drive Precisely controlled to achieve the most secure fit between socket and handle Ball Holding Groove This mechanism gives secure connection between socket and handle Ratchet Handle Smaller head with 36 tooth gear and light ratchet movement allows working in narrow or confined spaces 7mm 1 Installation Tool 1 Tang Break Off Tool 10 Inserts Thread Restoring Eco Kit UNC 1 4 x 20Free Running Inserts Eco Kit can be used in numerous situations It is a quick & economical solution to any type of thread repair