12-piece broken stud extractor set with steel screw extractors and drill guide set for removing broken bolts.

Use for: These extractors will remove most types of damaged, rusted, broken, or stuck screws from any wood or metal surface. Premium Material: They are made from high-quality steel with heat treatment for added hardness and a long service life. Suitable for Different Sizes: 6 heavy-duty screw extractors in different sizes to meet multiple needs. 6 high-hardness drill bits work well for drilling. Widely Applicable: The drill bits can also be used to drill holes in wood, metal, plastic, brick, and walls, etc. Handy Tool: Easily remove damaged or broken screws, bolts, studs, threaded pipe fittings, etc. Specifications: Condition: 100% Brand New Material: Steel Color: As pictured. Suitable for removing broken screws. Sizes: 4-6 mm (1/8"-1/4"), 6-8 mm (1/4"-5/16"), 8-11 mm (5/16"-7/16"), 11-14 mm (7/16"-9/16"), 14-18 mm (9/16"-3/4"), 18-25 mm (3/4"-1"). Square head screw extractor sizes: 3.2 mm, 3.7 mm, 5.3 mm, 6.62 mm, 8.3 mm, 12 mm. Screw extractor lengths: 9 cm/3.54", 8.3 cm/3.27", 7.4 cm/2.91", 6.5 cm/2.56", 5.7 cm/2.24", 5 cm/1.97". Drill bit size: 3/32", 1/8 in, 3/16 in, 1/4 in, 5/16 in, 3/8 in Drill bit length: 12.5 cm/4.92 in, 11 cm/4.33 in, 9.3 cm/3.66 in, 7.5 cm/2.95 in, 5.5 cm/2.17 in, 4.8 cm/1.89 in Weight: approx. 392g Package includes: 6 screw extractors, 6 drill bits