20mm Dry Core Bit  Designed for fast and clean drilling holes in all types of hard and soft materials: granite, porcelain, marble, sandstone, ceramic ... Easy start and long working life: over 100 holes 10mm segment height..

25mm Dry Core Bit  Designed for fast and clean drilling holes in all types of hard and soft materials: granite, porcelain, marble, sandstone, ceramic ... Easy start and long working life: over 100 holes 10mm segment height..

30mm Dry Core Bit  Designed for fast and clean drilling holes in all types of hard and soft materials: granite, porcelain, marble, sandstone, ceramic ... Easy start and long working life: over 100 holes 10mm segment height..

35mm Dry Core Bit  Designed for fast and clean drilling holes in all types of hard and soft materials: granite, porcelain, marble, sandstone, ceramic ... Easy start and long working life: over 100 holes 10mm segment height..

40mm Dry Core Bit  Designed for fast and clean drilling holes in all types of hard and soft materials: granite, porcelain, marble, sandstone, ceramic ... Easy start and long working life: over 100 holes 10mm segment height..

50mm Dry Core Bit  Designed for fast and clean drilling holes in all types of hard and soft materials: granite, porcelain, marble, sandstone, ceramic ... Easy start and long working life: over 100 holes 10mm segment height..