This is a set of sturdy and durable damaged screw extractors. They are made from bearing steel material, firm and very durable to use. You can use these broken end screw removing tools to remove and extract damaged or broken screws, very convenient and professional for most kinds of screws. Features -Color:As shown. -Material:Bearing steel. -Size:8.50X0.63X0.63cm,7.50X0.63X0.63cm,6.60X0.63X0.63cm,6.10X0.63X0.63cm,5.10X0.63X0.63cm/3.34X0.25X0.25in,2.95X0.25X0.25in,2.59X0.25X0.25in,2.40X0.25X0.25in,2.00X0.25X0.25in. - Removing broken or damaged screws can be easier with this set of broken screw extractors. - Made with high hardness and sturdy bearing steel material, firm and not easy to damage or deform. - Easy to use, drill a deep hole at the breakpoint, turn the screw extractor counterclockwise on the damaged screw, finally remove the damaged screw. - Widely applied for screws, machine screws, wood screws, lag screws and so on, satisfy your demands. - Whether it‘s for car maintenance or daily use, it can provide you with much more convenience. Package list: 5 x damaged screw extractors