Hammer Drill, Electric Drill, Power Tools manufacturer / supplier in China, offering 13PCS SDS Plus Flat Tip Drill Electric Hammer Drill Bit & Chisel Bit Set Concrete Masonry Drilling General Purpose, Laser Welded 16inch 400*40*3.4/2.6*10*28*25.4mm with Pin Hole and Cooling Holes Diamond Segmented Turbo Saw Blade for Cutting Concrete Beton, Laser Welded 12inch 300*40*3.2/2.0*10*20*25.4mm with Pin Hole and Cooling Holes for Cutting Concrete and so on.