Drilling diameter: 40mm / 1.57"; drilling depth: 58mm / 2.28"; shank size: 9.5mm / 0.37". Non-slip triangle shank fits most electric hand drills and bench drills.. Applications: Suitable for drilling concrete, masonry, hard brick, ceramic tiles, marble, stone, engineering stone, brick, vitrified tiles, and other hard materials.. Dry or Wet Drilling: Can be dry or wet drilling. To prolong the using life, it is recommended to be used with water for cooling and lubrication.. Large Clearance Hole: Facilitates the entrance of cooling water and the escape of chips and other particles from drilling to aid in faster cutting and coring.. Sharp Cutting Edge: The core drill bits cut clean and fast holes, and make drilling process much easier. Can be used on an electric hand drill or another machine, such as an angle grinder, hex, or round plus shank..
