Okatz 20V 4.0Ah Brushless Rotary Hammer Drill.. Model CH326-LISJ The Okatz CH326-LISJ is a powerful compact brushless cordless rotary hammer, delivering an exceptional performance-to-weight ratio for anchoring in concrete, drilling in masonry, core cutting and chiseling.**Features** .For industrial applications .High-performance EC brushless motor .3-mode operation (rotary hammer, rotary drill, hammer mode) .SDS-Plus chuck & 360° grip handle **Technical data** Brand Okatz Model CH326-LISJ Voltage 20V Battery 20V 4.0Ah x 2unit Battery type lithium ion Rated power 500W No-load speed 0-900rpm Impact rate 0-4,700bpm Impact energy 2.2 Joules Chuck type SDS-Plus Max. drilling capacity : .Concrete 24mm .Steel 13mm .Wood 30mm