Punta trapano a secco 4" per mattoni in calcestruzzo con perno SDS Plus per diamantato #30/40
Best for heavily reinforced concrete, hard aggregate, cured concrete and asphalt overlay. Dry Diamond Core Drill Bit for Brick and Concrete Block with Pilot Bit - 1/2" Shank Arbor - #30/40 Diamond. Arbor Size: 1/2" Shank Arbor.