Set 10 pezzi punte da trapano e sinistra estrattore viti Easy Out cobalto HSS punte da trapano
Having to pre drill first, as you would have to do when using a regular screw extractor. • Extractor sizes: #1, #2, #3, #4, & #5. The bits are made of Cobalt and the screw extractors are machined, high speed steel.