How To Sharpen Metal Lathe Tools On A Grinder

Turn the grinder on and lower the tip of the parting tool onto the moving grinding wheel for a few seconds.

How to sharpen metal lathe tools on a grinder. Point it invariably rounds the edges blunting the tool and causing rubbing just below the actual cutting edge. Trusted China Suppliers Verified by SGS. Some people sharpen tools using silicon carbide paper.

In profile this looks just like a worn tool. Waist with two elbows to reduce the shaking of the lathe tool sharpening. Grinding generates heat which can cause two problems.

Shown below is what Ive put together to achieve the level of accuracy desired. The best is a diamond wheel but thats expensive. Even though the overall relief angle might be 8 its the almost microscopic angle at.

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Turn the parting tool over and do the opposite side for the same amount of time. Hold it flat against the tool rest which remember is at a 10 downward angle and slide it smoothly back and forth across the entire wheel. A green wheel Silicon carbide is normally used for sharpening carbide on a bench grinder.

In some cases you might want to purchase a higher quality fine grit wheel. During sharpening major flank face the lathe tool shank. Even an inexpensive bench grinder can do a good job grinding lathe tool bits.