Specifications:Diameter: 14mm / 0.55"Thread: M10Drilling Depth: 37mm / 1.46"Overall Length: 59mm / 2.32"Tip Material: Sintered DiamondBody Material: Carbon SteelFit For: Angle GrinderSurface Treatment: Electrostatic Powder CoatingMain Color: Dark BlueDescriptions:1. Designed for cutting holes in soft to hard concrete, stones, bricks, blocks, masonry.2. Can be Wet or Dry use.To prolong its using life, must be used with water for cooling and lubrication.3. Easily operate on Angle Grinder; need an adapter for drill or other machine, such as hex, round shank etc..4. Large clearance hole facilitate the entrance of cooling water and escape of chips and other particles from drilling. Makes drilling process easier.Package:3 Pcs x Diamond Core Drill Bits