Fits wood and machine screws, flat, hex or painted over screws, Can be used with the drill Quick and easy to remove most kinds of , stripped, rusted, broken, or stuck screws, bolts, studs and pipes Made of high carbon steel with high hardness, strong and , Convenient and efficient, long service life Screw extractor size includes #1 for 1/8inch-5/32inch , #2 for 5/32inch-3/16inch, #3 for 3/16inch-1/4inch, #4 for 1/4inch-5/16inch, #5 for 5/16inch-7/16inch, #6 for 7/16inch-9/16inch, 7# for9/16inch-3/4inch, 8# for 3/4inch-1inch Color: Red & Black Material: plastic Package Contents: 1 set x Screw Extractor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.