We specialize in supplying any tool accessories, please feel free to contact us if you need any help.Product name: 1:50 Taper ReamerProcessed material: For stainless steel, aluminum alloy, cast iron, die steel, copper and other metal materialsFeatures: High hardness, wear resistance, high efficiencyKind tips: Due to the high precision and high hardness of the integral reamer, it also causes its brittleness. We do not recommend using a hand drill directly, because it is operated with tools such as an electric drill, and the manual shaking is large, the stability is also poor, and it is easy to be inaccurate.