Features: These extractors will remove most kinds of damaged, rusted, broken or stuck screws from any wood or metal surface. They are made from premium steel with heat treatment for extra hardness and long durability. 6 pieces heavy duty screw extractor with different sizes to meet multiple needs. 6 pieces high hardness drill bits functions good for drilling. Drill bits can also be used to bore holes on wood, metal, plastic, brick and wall, etc. Easily remove damaged or broken screws, bolts, studs, threaded pipe fittings and so on. Specifications: Condition: 100% Brand New Material: Steel Color: As Picture Shown Suitable for Removing Broken Screws Size:4-6mm(1/8 -1/4''), 6-8mm(1/4 -5/16''), 8-11mm(5/16 -7/16''),11-14mm(7/16 -9/16''), 14-18mm(9/16 -3/4''), 18-25mm(3/4 -1") Screw Extractors Square Head Size: 3.2mm, 3.7mm, 5.3mm, 6.2mm, 8.3mm, 12mm Screw Extractors Length: 9cm/3.54in, 8.3cm/3.27in, 7.4cm/2.91in, 6.5cm/2.56in, 5.7cm/2.24in, 5cm/1.97in Drill Bit Size: 3/32in, 1/8in, 3/16in, 1/4in, 5/16in, 3/8in Drill Bit Length: 12.5cm/4.92in, 11cm/4.33in, 9.3cm/3.66in, 7.5cm/2.95in, 5.5cm/2.17in, 4.8cm/1.89in Weight: Approx. 392g Package Included: 6 * Screw Extractors 6 * Drills Bits Package List 1These extractors will remove most kinds of damaged, rusted, broken or stuck screws from any wood or metal surface 2They are made from premium steel with heat treatment for extra hardness and long durability 36 pieces heavy duty screw extractor with different sizes to meet multiple needs. 6 pieces high hardness drill bits functions good for drilling 4Drill bits can also be used to bore holes on wood, metal, plastic, brick and wall, etc 5Easily remove damaged or broken screws, bolts, studs, threaded pipe fittings and so on