Thread Direction:Right Material:Alloy Steel is_customized:Yes Number of Pieces:75/125/131pcs Model Number:HSR75PCSM568 DIY Supplies:Metalworking Type:Other Origin:Mainland China Thread Repair Tool Set 75/125/131pcs M5 M6 M8 M10 M12 Screw Thread Inserts For Restoring Damaged Helicoil Kit Features: 1. Perfect for restoring damaged threads, suitable for engine repair and other automotive. 2. Applications for steel, cast iron and aluminum. Can be used in daily repair, car repair, drilling machine, etc. Specification: Type: Thread Repair Kit Material: High Speed Steel Size:  M5 M6  M8 M10 M12 Note: Please allow 1-3mm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Including: Thread Repair Kit