Features 【HIGH QUALITY】: A screw extractor set made of high quality GCR15 tool steel, durable and long service life, suitable for water pipe thread openings to help thread correction. 【INCLUDING】: There are 6 pcs screw extractors, sufficient quantity, suitable for removing all kinds of damaged head bolts and screws. 【SIZE】: 1# size: 4.0mm, applicable range: 4-6mm, 2# size: 4.5mm, applicable range: 6-8mm, 3# size: 6.5mm, applicable range: 8-11mm, 4# size: 7.5mm , Scope of application: 11-14mm, 5# specification: 11.0mm, scope of application: 14-18mm, 6# specification: 15.omm, scope of application: 18-25mm. 【SUITABLE FOR】: Widely used in maintaining home, office, etc. Suitable for wood and machine screws as well as PH, flat, hex or painted screws. 【PROFESSIONAL】: Standard manufacturing specifications, this screw extractor has undergone strict craftsmanship, surface polishing, high hardness, high torque, and easy operation. Specifications: Material: steel Color: as the picture Packaging: plastic box Size: as the picture Package Included: 1 x 6 pcs/set screw extractor Package List