Features:*9pcs round shank cross electric hammer drill bit set for wall concrete drilling*exquisite and beautiful, comfortable to work*great wear resistance*deep groove chip removal, smoother concrete drilling*round handle, tight grip, does not slipspecifications:*name: sds shank electric hammer drill bit*shank type: round shank*cooling type: external cooling*cutting diameter: 5-16mm (approx)*shank diameter: 9mm (approx)*chip flute length: 90mm (approx)*useful length: 90mm (approx)*overall length: 160mm (approx)*outer apex angle: 45°*material: hard alloy*maximum cutting depth: 90mm (approx)*category: reaming drill* diameter: 5-16mm* length: 90mm (approx)*model: 5/6/6/8/ mm*packing size: 3.5*3.5*16cm (approx)*scope of application: brick wall, cement wall, concrete, stone*compatible models: impact drillpackage contents:9*drill bitsnote: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors