Features Zig Zag laser welded turbo segments and a special barrel with cooling slots and spiral grooves. Fast and cooler drilling in non-reinforced concrete block and masonry materials. No water needed for easy clean up. Main applications include drilling for pipes or dryer vents in block or masonry walls. Bit is 9″ long with 5/8″-11 thread for use on an Angle Grinder.
Core Bit Tube Extensions are 12″ long and screw directly onto the Zig Zag Wet Core bits to extend effective drilling depth to allow for continuous drilling. This is also much more efficient than getting core bits manufactured to custom lengths.