Set 3 pezzi taglierina per fori in metallo + bustina punte trapano passo HSS set punte titanio cono grande
Two-Flute Spiral Groove Design: Enables a faster, more stable and smoother cutting. It can automatically chamfer the hole to clean the drill bit. - HSS & Titanium Coated: Made of super strong HSS steel and coated with Titanium.