Chisel and Driver Sharpening: Anvil 0126

Published on June 30, 2023
Duration: 23:50

This guide details the process of sharpening dull chisels, focusing on achieving a razor-sharp edge suitable for precision work. It emphasizes the importance of a flat back side, the creation of a micro-bevel for durability, and the final stropping stage for optimal sharpness. The techniques discussed are presented with a gunsmithing perspective, highlighting the transferable skills of precision tool maintenance.

Quick Summary

To sharpen a dull chisel, first inspect its edge for dullness and ensure the back side is perfectly flat. Sharpen the primary bevel, then add a micro-bevel at a slightly steeper angle for durability. Finally, strop the edge to remove any wire and achieve extreme sharpness, allowing it to easily cut into wood.

Chapters

  1. 00:08Introduction: Dull Chisels
  2. 01:03Understanding Chisel Angles
  3. 01:44Sharpening Philosophy: Hollow Grind
  4. 02:08Importance of a Flat Back Side
  5. 03:10Creating a Micro-Bevel
  6. 03:27Using Oil on Sharpening Stones
  7. 03:46Preparing the Back of the Chisel
  8. 04:45Flattening the Chisel Back
  9. 05:58Achieving a Flat Back Surface
  10. 06:32Sharpening the Front Side
  11. 06:54Checking and Correcting the 90-Degree Angle
  12. 08:06Using a Sharpening Jig
  13. 09:06Cooling the Edge with Water
  14. 09:30Setting the Sharpening Angle
  15. 11:13The Sharpening Process in Action
  16. 12:00Addressing Rounded Corners
  17. 12:25Sharpening on a Bench Grinder (Caution)
  18. 14:15Completion of Primary Sharpening
  19. 14:22Setting Up for Micro-Bevel
  20. 15:01Hollow Grinding Screwdrivers (Related Technique)
  21. 18:02Removing the Burr
  22. 19:11Creating the Micro-Bevel
  23. 21:04The Wire Edge and Stropping
  24. 21:47Testing Sharpness on Wood
  25. 22:57Conclusion: Sharp vs. Dull

Frequently Asked Questions

What is the first step in sharpening a dull chisel?

The first step is to inspect the chisel for dullness, noting any silver spots on the edge. You also need to assess the back side for flatness and any imperfections like pits or rust, as this is crucial for proper sharpening.

Why is it important to keep the back side of a chisel flat when sharpening?

Keeping the back side of the chisel flat is essential for controlled cutting and to prevent lines from appearing in your woodwork. An uneven back makes the chisel difficult to handle and can lead to inconsistent results.

What is a micro-bevel and why is it added to a chisel edge?

A micro-bevel is a very fine, slightly steeper angle added to the very tip of the main bevel. It's easier to touch up, helps maintain sharpness longer, and provides a more durable edge for woodworking tasks.

How can you tell if a chisel edge is sharp enough after sharpening?

A sharp chisel should have a very fine burr that can be felt along the edge after sharpening. After stropping, it should be able to stick to your fingernail and easily cut into soft wood with minimal pressure.

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