Feature: 1. CNC blade: advanced CNC blade grinding technology, standard accuracy bring small error and higher wear resistance, greatly improving the service life of the tool. 2. Accurate casting: the drill bit is made of cemented carbide with high hardness, fast impact and good heat resistance. 3. Special carbide blade, multiple combination of blade structure, unequal division of tooth pitch, not easy to collapse. 4. Used for cutting stainless steel, copper plate, steel plate, aluminum plate and other materials. 5. Suitable for all kinds of domestic magnetic drills, general drilling machines, vertical bench machines, milling machines, boring machines, machine tools and other processing equipment. Specification: Item Type: Core Drill Bit Material: Cemented carbide Application: Used for cutting stainless steel, copper plate, steel plate, aluminum plate and other materials. Suitable for all kinds of domestic magnetic drills, as well as general drilling machines, vertical bench machines, milling machines, boring machines, machine tools and other processing equipment. Handle Type: Universal handle Cutting Depth: Approx. 35mm / 1.4in Handle Diameter: Approx. 19mm / 0.7in Diameter: Approx. 30mm / 1.2in. Package List: 1 x Core Drill Bit