·適用於一般鋼料,HRC 30以下之合金鋼、鑄鐵、鑄鋼等被切削材。·柄部為莫氏圓錐柄,配合導套使用。·Suitable for drilling General Steels, Alloy Steels withhardness under HRC 30, Cast Iron and Cast Steel, etc.·Morse taper shank can be fitted into sleeve.