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What Causes Extra Long Wood Drill Bit Manufacturers' Bits to Break
Drilling into hard surfaces can cause the bit to break and, in some cases, stick. Due to radial forces, the drill usually breaks at the end of the flute. On the other hand, high torque can cause the drill to break in the center of the groove.
One of the most common causes of bit breakage is poor bit strength and quality. Cheaper bits tend to use lower quality materials and are prone to damage. Additionally, they do not resist high torque and radial forces that would cause them to break.
Extremely high temperatures are generated during drilling. If you drill in one spot for too long without stopping, it will get too hot and break. You can use coolants and lubricants to keep the drill cool and lubricated. You can also pause between holes to allow the bit to cool to minimize the risk of breakage.
Bit breakage can occur when there is a substantial chip load. To reduce breakage, use an appropriate chip load. As specified by the tool manufacturer, the chip load is the distance the material enters the tool at the tool centerline.
If you are using a drill, make sure you have the correct speed and feed rate so the drill does not break. Check the cutting speed and adjust the speed and feed as needed. Due to different drilling conditions, it is impossible to set strict rules for feed and speed. Always follow the manufacturer's recommended speeds and feeds.
Why can't my drill make a hole?
The most typical reason a drill won't penetrate is that it's spinning the wrong way. If your drill is set to turn in the opposite direction, it will be difficult to make holes. Check the switch and see if it is set to turn clockwise for forward motion.
Also check that it is set to the proper speed. Depending on the type of material, a slower or higher speed than recommended can cause it to reduce the performance of the drill, making it difficult for you to drill.
If your drill can't drill through the surface and can't penetrate it, it's probably a blunt drill. Look for signs of chipping or damage to the surface. The problem should be fixed by replacing the drill bit with a newer one.
When should the drill bit be replaced
In general, as long as your holes are within tolerance, i.e. less than half a millimeter of wear, you can continue to use the drill. When you observe significant wear or when drilling takes longer than usual, it is time to sharpen, resharpen, or replace the drill.
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