Features

• The use of a cross blade at the cutting edge allows penetration of the deck plate.
• Holes close to a circle can be drilled, so anchor insertion is smooth.
• Stable drilling ability is maintained by a cross blade with little bite and less wear on the cutting edge and outer diameter even when it hits the rebar.
• The cross blade developed to enable the penetration of the deck plate is composed of two blades, the main blade and the secondary blade, to reduce the crossing angle and prevent the lowering of the drilling speed.
• Drilling close to a true circle is realized by positively acting the secondary blade on the outer circumference cutting.
• The use of a cross blade at the cutting edge allows not only the penetration of the deck plate, but also the drilling close to a circle, and the insertion of the anchor is smooth.
• Also, vibration load during work has been reduced.