4241 ordinary 19pcs set full-grinding high-speed steel drill stainless steel iron aluminum metal twist drill_博凯工具

4241 ordinary 19pcs set full-grinding high-speed steel drill stainless steel iron aluminum metal twist drill

4241 ordinary 19pcs set full-grinding high-speed steel drill stainless steel iron aluminum metal twist drill

4241普通19PCS套装全磨制高速钢钻不锈钢铁铝金属麻花钻

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产品描述：

直柄麻花钻是应用最广的孔加工刀具。它主要由工作部分和柄部构成。工作部分有两条螺旋形的沟槽，形似麻花，因而得名

麻花钻按其功能的不同，可以分为三部分：

1.钻柄钻头上供装夹用的部分，并用以传递钻孔所需的动力（转矩和轴向力）。

2.钻颈位于刀体和钻柄之间的过渡部分。通常用作砂轮退刀用的空刀槽。

3.钻体钻头的工作部分。由切削部分（即钻尖）和导向部分组成。

Update time：20220223173653