We use drills many times, and the drills used in different occasions are different, and the HSS Cobalt Drill Bit Supplier's HSS Cobalt Drill Bit Supplier is also a kind of drill we often use. So what should we pay attention to when using electric drills?
Re-grinding the drill bit in time can increase the use and regrind times of the drill bit, extend the service life of the drill bit, and reduce production costs and expenses. Usually measured with a tool microscope, the wear depth should be less than 0.2mm within the full length of the two main cutting edges. 0.25mm should be removed during regrind. Ordinary fixed shank drills can be reground 3 times, and undercut drills can be reground 2 times. Excessive grinding will reduce the quality and accuracy of the drilling, resulting in scrapping of the finished circuit board. Excessive grinding effect is counterproductive.
When ordering drill bits from the manufacturer, check whether 4% of the drill bits meet the requirements. And 100% of nicks, scratches and cracks are inspected with a microscope at 10 to 15 times.
And wood drill bit manufacturers also need to be tested, so they are still very safe when used.
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