18/10/2024
As woodworkers, our tools are our lifeblood - the condition of our tools directly impacts the quality of our work.
In our professional workshop, we work with a variety of blades, each suited for specific tasks. And just like our work, sharpening is an art of its own. Different blades require different sharpening techniques, and we adapt to meet the needs of every project.
In this video, we're honing a Western Iron blade using the hollow grind method. This is just one of many approaches we use to maintain the precision needed for high-quality work.
⚒️ Hollow Grind Sharpening: A Simple Explanation⚒️
Imagine a Western Iron blade as a wedge. The hollow grind method involves grinding a concave shape into the blade's edge. This creates a thin, sharp cutting edge that can slice through wood with precision.
Here's a simplified breakdown:
1. Preparation: The blade is secured in a grinding jig at an angle which gives the tangent of the grinding stone to the bevel. .
2. Grinding: A grinding wheel or stone is used to remove material from the blade's bevel, creating a concave curve. This concave should be deep enough but yet shouldn’t reach the cutting edge.
3. Honing: A medium-grit stone is used to polish the edge and create a burr at the cutting edge.
4. Finishing: The blade is taken through a series of higher grit stones to give a smoother edge, and final removing the burr. The blade is inspected for sharpness and any final adjustments are made.
By creating this hollow shape, the bevel’s surface is greatly reduced, reducing sharpening fatigue and making sure we go back to work as quickly as possible.