Punta diamantata a secco 4" per mattoni, blocchi o muratura, perno filettato 5/8"-11

4” Dry Diamond Core Drill Bits for Brick, Block or Masonry, 9.5" Drilling Depth, 5/8"-11 Threaded Arbor. Designed for drilling masonry, concrete block and soft brick. Arbor Size: 5/8"-11 Threaded Arbor.

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