... Material:40CR,YG8C 4.Application: Concrete, Clinker, Masonry, Stone 1.Product Description Material: 40 Cr steel and tip YG8C kentaniumProcessing type: ... hammer drill bit is made of high quality alloy strucutred steel with sepcial grade carbide tip, and brazed in the ... of electric hammer drill, masonry drill, chisel,router bit, concrete Hole saw and related products. 5.Company Picture6.Certificate ( ...