Honing head is a vital part in honing processing technology which can process traditional honing pieces and reticulate by working with honing machine. Honing bar is a type of high-tech tool to achieve high-precision surface finish. Honing head is widely used in processing high precision holes of *internal combustion cylinder, *hydraulic oil pressure, *brake; The roundness of IT7~IT6 holes and cylinder tolerance can be controlled in 3~5um. Honing bar can be divided into PCD (Polycrystalline diamond) type and cubic boron nitride (CBN) type by material that processing durability is 300~500 times longer than traditional honing bars
