Diamond Core Drill Bit - FOCSTOL 3''(75mm) Laser Welded Hole Saw for Dry or Wet Drilling Granite Marble Concrete Quartz 5/8''-11 Thread

Diamond Core Drill Bit - FOCSTOL 3''(75mm) Laser Welded Hole Saw for Dry or Wet Drilling Granite Marble Concrete Quartz 5/8''-11 Thread

【Size】Diameter 3''(75mm); Total length 100mm; Diamond height 10mm; 5/8''-11 Thread; Diamond Grit #25/35 【Application】Dry or Wet drilling Granite Marble Concrete Masonry, etc. (Wet drilling will greatly prolong the segment life) 【High Performance】Laser welded technology avoid segments off when dry working. Turbo segments provide aggressive drilling speed 【Vacuum Brazed Both Sides Pretection】Vacuum brazed protective coating on core steel surface provides clean cut and steel core protection.High-quality diamond extends drilling life and improve the working efficiency 【Recommended Machine】Diamond Core Drill Bit can be used for 5/8''-11 Thread Angle Grinder (Dry or Wet Drilling, use wet will greatly prolong the segment life)，Recommended speed 6000RPM, maximum speed 11000RPM. If you want to use electric drill or other machine, you can use SDS or other Adapter