How to sharpen spade drills
Do you have directions or a video about how to sharpen spade bits?
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Do you have directions or a video about how to sharpen spade bits?
These drill bits have to be sharpened by hand, You cant touch the inside bevel with the stone surface. It's important to have the outer cutters on the drill, with a sharpening stone you would grind them away, The only way is to use some files, best diamond coated key files.