Drill bit HSS Co8 bi-metal RUKO

Bi-metal semi-circular drill bits HSS Co 8 with fine teeth Fine teeth are very suitable for cutting metals. This ensures a smoother cut and requires less effort Heat generation is avoided during cutting, which extends the service life For drill bits up to 30 mm, the RUKO A5 drill bit holder 14-30 mm is suitable, and from 32 mm - the RUKO A6 drill bit holder 32-210 mm