Product: PCD Straight Flute ReamersMaterial: PCD,Website: , Polycrystalline DiamondType: Metric, Imperial, Non-standardProduct Description:PCD straight flute reamers are PCD material tipped, it used to create a high precision hole, because the hardness of PCD material is very high, so it can process tungsten carbide material.PCD is called diamond sometimes, it will provide a much longer service life compared with tungsten carbide reamers.Diamond material is the hardest material, because it is super high hardness, it will save your time of changing tools, it can be used for a long time in the machine.