Industrial Bit manufacturerd by VESSEL, Pack of 4, Ideal for use in assembly line or continuous use in the same application. VESSEL's Bits are born in Okuizumo, Shimane prefecture where surrounded by the rich nature of Japan. It is where “Tatara iron-making” once flourished, and the tradition is still carried on and exist. Manufacturing method is much more modernized now, however “Tatara Origin” philosophy continues to be raised to the world in order for us to keep inspiring the DNA of this manufacturing spirit.