Diamond Core Drill Bit,BRSCHNITT 3 Inch Laser Welded Diamond Hole Saw with 5/8-11 Thread for Granite Marble Solid Block Stone Reinforced Concrete,Dry or Wet Drilling (75mm)

Features

• Size --1pc 3 inch core drill bit (75mm),diamond height 10mm, total length 100mm,diamond grit #25/35,working length 80mm,5/8-11 thread of the granite drill bit
• Wide Application --Diamond drill bit are worked great for dry drilling holes through Granite Marble Hard Stone Reinforced Concrete Brick Block Counter Top,Using water could prolong the lifetime
• Super Quality Raw Material --Using laser welded technology,improve the performance of segments,avoid segments off during drilling process.The vacuum brazing protective layer on the surface of the core steel offers clean cut & steel core protection
• Fast and Smooth Drilling --Creates a fast and stable drilling, you could drill smoothly with no broken edges
• Machine --angle grinder (Pay Attention! If you drill through thick granite ,we recommend you to add enough water to help cooling the bits,which could prolong the lifetime)