1、[Versatile Hole Enlarging] This diamond beveling chamfer bit helps you create various sizes of holes, resulting in smoothly and beautiful hole finishes. 2、[Specification] 50mm diameter, 43mm height, 58 degree bottom angle, M10 female thread, this chamfer bit can be used with 100 type angle grinders or handheld drills. 3、[Superior Diamond Milling] The diamond chamfer bit features a new diamond brazing process, utilizing high strength metal for enhanced durability and precise in hole shaping. 4、[Dry or Wet Use] This diamond beveling chamfer head can be used directly or with the addition of water, providing flexibility in different working conditions. 5、[Widely Applicable] Perfect for shaping, enlarging, and chamfering existing holes in ceramics, hard ceramics, and marble, this milling bit is suitable for a wide range of applications.