Sharpening Carbide Drill Bits :: SuperTopo Rock Climbing ...
2021-8-11u2002·u2002Just one word of caution if you are sharpening carbide bits to make them last longer. The problem with carbide SDS bits as they wear is that they also lose some diameter so you need to closely monitor the width of older bits. This is especially a problem when using a power drill as it rotates the bit in the hole much faster than drilling by hand.
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