Thread Chasing Tool Set

The cutters are sharpened to have a hollow grind on the top of the tool, behind the thread cutting area. This hollow grind is shown in an exaggerated picture below.

Side View
Showing (exaggerated) hollow grind

The tool is then honed by rubbing a 150+ grit diamond file against the top of the tool. The area to be honed is shown in the pictures as the area marked red.

Outside Chaser
Inside Chaser
Left Hand Parting Tool

More Information

Books & Papers

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Remember : The goal of sharpening is to produce sharp tools, and these tools can injure you if mishandled. Safety measures should be followed to protect yourself and those in your shop. Be sure to read and follow all instructions from the manufacturer, and and utilize proper safety equipment. Never consume alcohol or anything that could impair your judgement before sharpening tools, or using sharp tools. Comments can be sent via eMail to me at