Specifications: Made of high speed steel and CVR, it is durable, wear-resistant and easy to use. This extractor kit can remove even the most stubborn peeling, damaged, embedded, rusted and painted screws and bolts. It is suitable for bolts, machine screws, lag bolts, wood screws, hex bolts, sheet metal screws and other screws. Type: Screw Extractor Kit Product Material: High Speed Steel, CVR Quantity: 33Pcs/Set Drill Shank Specification: 1/4 Inch (6.35mm) Hex Shank Extension Rod Specification: Quick Connecting Rod Features: Durable, Easy to Use, Screw Extractor Size: 20cm x 8.6cm x 2.2cm/7.87" x 3.39" x 0.87" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Quick Connecting Rod 1 x Extension Rod 1 x Conversion Head 10 x Hole Drills 10 x Wire Drills 10 x Drill Bits