●With a deformed wire twisting with high strength, shaft strength is increased and can be used for both positive and negative rotations.●Scrapes the internal surface of hole during positive rotation and discharges dust etc. from internal surface of the hole during negative rotations.●By using an impact screwdriver or electric screwdriver, can work in short time and easily.●Abundant line-up compatible with all specifications of chemical anchor.●Pilot hole processing of chemical anchor, cleaning of various compatible holes and cleaning after abrasive grain polishing.(bristle material is nylon)●Pilot hole processing of chemical anchor(since it hits rather harder, it produces fine unevenness on the concrete surface which makes chemical anchor to be easily secured), burring of various compatible holes.(bristle material is nylon)●Wire Diameter (mm):0.15●Total Length (mm):200●Outer Diameter (mm):10.5●Brush Length (mm):60●Shaft Diameter (mm):4.2●Bristle Material:Wire steel wire●Max Working Rotation Speed (rpm):2000●Deformed wire double twisting●Shaft: steel(SPHC)
