Бесплатная доставка 1.0мм~5.0мм 10шт HSS CO M35 60 градусов Сверло спирального центра с кобальтом для обработки

Description

Center drill instructions:

1 users must according to pass machining parts and straight hole size reasonable selection of center drilling model.

The 2 workpiece hardness should be the most 170-200HB.

The 3 tool before use, must be washed antirust oil, so as not to affect the cutting performance of chip stick over the edge.

4 is a workpiece surface processing should be straight, there shall be no blisters or hard points, so as to avoid cutter damage.

5 the center drill before drilling shall reach the desired position accuracy.

6 cutting

7 cutting fluid processing object selection: according to different cutting fluid, cooling should be fully.

Note: 8 appeared in the processing of the abnormal situation should immediately stop, find out the reason behind the processing; pay attention to wear edge timely repair; tool to clean oil after use, the safekeeping of oh.