◆ CORE DRILL (For light heavy Type) ◼ Chracteristics : The big-diameter Drill for small light-heavy type hammerdrill, easily drilling the concrete ◼ FEATURES : 1. Even though small light-weight electric drill is weak in striking power, it can drill big diameter. 2. The power of striking and turning by small light-weight hammer drill is designed for being transferred effectively to blade edge. The body thin in thickness is specially treated by heat for good endurance. Futhermore we took the spiral that the cut scraps were quickly output. 3. Center pin is easy to decide center's location without a guide plate and extract it on one-touch. (Note)If possible, please avoid the cutting of the reinforced bar, owing to the strength of the structure. ◼ USAGES : 1. Insert the shank to Core drill body. 2. Put the center pin to end hole of shank and insert for setting. 3. Center pin is needed only for deciding a location. If the location is completely set after drilling of 5 . extract the center pin and continue the piercing work.