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What is the role of the chisel edge?
Apr 24, 2018

The drill bit is the most important part of the cutting bit. The cutting edge has a great influence on the cutting performance of the drill. When the bit is drilled, the horizontal blade plays a centering role, which affects the shape, position, and dimensional accuracy of the drilled hole. The axial force generated by the blade accounts for 50-60% of the axial force of the drill. Therefore, in order to increase the sharpness, reduce the cutting force and improve the cutting performance, it is necessary to grind the chisel edge.








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