4 Inch Wet Core Drill Bits, DaduoRi 4" Core Bit for Concrete, 14" Drilling Depth, 1-1/4"-7 Thread Diamond Core Bit for Cured Concrete with Rebar, Hard Masonry, Brick Block, Stucco, Stone (102mm)

Additional Details from the Manufacturer

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More features

• SPECS: Core drill bit 4" diameter(outside),1-1/4" - 7 threaded arbor,14" drilling depth.
• USE WITH: For use with 1-1/4" - 7 spindle handheld core drills or core drill rigs with stand; use on rotary mode only.
• LONGEVITY: 4" Core bits feature uniform distribution and large diamond for fast-speed.Wet used!
• VERSATILE: 4 inch diamond hole saw drill bit core brick,concrete block with light steel reinforcement or hard masonry, stone.
• RELIABLE: Adopt new materials and advanced sintering process and welding process, which significantly improves the sharpness and resistance of this concrete hole saw.