기능

• Since the cutting edge is double-edged, it can be used twice as much.
• Since there is a forgiveness (dragon) groove on the outer circumference of the core drill head, there is a lot of discharge of cutting powder, and speedy drilling is possible.
• Can be used for electric drill, vibration drill, SDS lightweight hammer drill (rotation mode).
• The effective length is 105 mm.
• For drilling mortar, block, brick, slate, Japanese wall, gypsum board, veneer, plywood, vinyl chloride, etc.