기능

• Stable perforation is possible with little catch or impact due to perforation. Even if you use it for a long time, it reduces the strain on your body and reduces fatigue.
• Hole-drilling close to a circle is realized.
• Improved positioning performance.
• Improved safety when contacting reinforcing bars. (Reduces swinging by electric motor)
• Penetrate through deck plate.
• Less outer diameter wear.
• If the chips are clogged in the small diameter size, the chips can be easily removed by pulling the bit. In some cases, if the cutting chips continue to be filled, the bit may be damaged.