HIGHDRIL Diamond Hole Saw Core Drill Bit Adapter for Drill Core Bits or Grinding Disc

PRODUCT NAME: Adapter M14 or 5/8-11 or M10 male thread to 3/8 hexagon shank for M14 or 5/8-11 or M10 drill core bits grinding disc Specification: M14 or 5/8-11 or M10 male thread,  3/8" Hexagon Shank, shank length 28MM, total length 53MM Quantity: 1pc,2pcs Feature： Good quality steel, long life, and Surface Nickel plating M14 or 5/8-11 or M10 thread core bits can be fitted on hand drill or electric drill