Sharpening Spyderco's

Joined
Jan 8, 2010
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If I am right all spyderco's come with a 30 degree edge correct? My main question is does everyone sharpen their spyderco's on 30 degrees or do you sharpen them with a 40 degree micro bevel?

Thanks, Pitt
 
I use 40 for touch up's. Then when that no longer works, I re-profile them with the 30 degree slots. Once I've got the bevel completely down to 30 degree's I lightly micro bevel the very edge with the 40 slots.
 
I freehand sharpen with Spyderco ceramic bench-stones but I think I'm somewhere around 30 degrees.

I'm a big fan of hollow ground blades so I'm not sure if the difference between 30 and 40 degrees makes any difference when cutting something.

With a saber or V-grind I imagine it would make a lot of difference!
 
I don't think factory grinds are that accurate. AFAIK, people sharpen factory knives freehand(no guide) on a wheel. These people sharpen numerous knives each day. Factory grinds can come in a variety of bevel angles. I do think they aim for less than 40 degrees inclusive. This means that the SM at the 40 degree slot will always hit the edge. If you're lucky and have a 30 degree or less bevel angle from the box, then you don't have to reprofile to hit the edge with the SM at the 30 degree slots.

Having said that, most of my spydies(except my E4 which I reprofiled) came at 30 degrees or less since I was hitting the edges at the 30 degree slot.
 
That's up to you. The 40 degree edge will be more durable, but not quite as sharp. If your main use for the knife is to impress your friends with how easily it shaves your arm hair, stick with the 30 degree slots. If you use the knife for more demanding tasks like cutting up cardboard boxes and such, the 40 degree edge will last longer.

As others have said, 30 degrees is the goal at Spyderco, but they are sharpened by human beings using their own two hands, so sometimes the goal is met, and sometimes it isn't. I've yet to encounter one that was over 40 degrees, though.
 
That's up to you. The 40 degree edge will be more durable, but not quite as sharp. If your main use for the knife is to impress your friends with how easily it shaves your arm hair, stick with the 30 degree slots. If you use the knife for more demanding tasks like cutting up cardboard boxes and such, the 40 degree edge will last longer.

As others have said, 30 degrees is the goal at Spyderco, but they are sharpened by human beings using their own two hands, so sometimes the goal is met, and sometimes it isn't. I've yet to encounter one that was over 40 degrees, though.

Ok Thanks a lot.
 
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