... .Material:40CR 4.Application: Concrete, Clinker, Masonry, Stone 1.Product Description Main featuresGreat on walls: with its unique three- ... with electric hammer in chiseling hole cutting groove for concrete and brick wallMaterial:40CR steelsurface Finish: polishing2.Company ... electric hammer drill, masonry drill, chisel,router bit, concrete Hole saw and related products. 5.Company Picture6.Certificate ...