Raizi Laser Welded Concrete Core Drill Bit

Raizi Laser Welded Concrete Core Drill Bit The concrete core drill bits are used for construction install pipe, air conditioning, electric, heating, gas pipeline drill wall, and highway, airport runway, bridge and tunnel engineering drilling, also can drilling Stone or ceramic non-metallic materials. Laser welded technology make the diamond segment matched well with the metal body. Specification: Diameter: 20/26/32/40/50/63/76/83/102/112/120 mm Length: 400 mm Connection: 1 1/4"  Thread Laser Welded Technology Precisely positioned diamonds for unmatched drilling performance and constant drilling speeds over the entire life of the core bit Easy core removal, fast stuck core bit recovery and on-site retipping using just a flat-tip screwdriver