5 HSS-CO Sverlo 12mm Bosch 2608585903 is a 12mm-diameter of 12mm diameter made of high quality HSS (High-Speed ​​Steel) and cobalt. This tool provides perfect perfection performance in metal, plastic, ceramics and other hard materials. This SVO, produced by Bosch, allows you to open proper and clean holes by working at high speed. The HSS-CO is perfectly resisted against high temperature and wear, which ensures that Sverloon is longevity and reliable. It is an ideal choice for both professional and home users in the 12mm size and gives excellent results in hard materials.