기능

• Special knurled shaft machining of the shank prevents the slip of the chuck part.
• Since the drill can be used to its full potential, it has more than 30% of the performance in terms of sharpness and durability compared to conventional products.
• The knurled shaft machining prevents the slip, making it possible to drill harder materials.
• Use only in the vibration mode.
• 5 pieces of concrete screw, 5 mm of pre-hole size.
• Value price for all 5 pieces.
• Drilling concrete, blocks, bricks, mortar, etc.
• * Use a vibration drill.