特徴

• The stopper allows reliable drilling up to a specified depth.
• It is possible to mount the driving holder and drive without removing the bit from the hammer drill.
• The cutting edge uses 3 deltagon blades, and can be drilled close to a true circle. Anchor insertion is smooth and positioning is easy.
• A spare O-ring is included so that it can be replaced if the O-ring for mounting the holder wears out.
• For perforating and punching holes in concrete, mortar and deck plates with internal cone-driven anchors.