Looking for Sharpmaker Diamond inserts

USAFSP

USAFSP

Joined
Jul 2, 2000
Messages
2,357
I am looking for a set of diamond hone inserts for my Spyderco Sharpmaker. I worked part time at a knife shop a few years ago and they had them, but they are under new ownership now, and no one there knows a thing. They just slipped over the existing ceramic rods, and boy you could really reprofile an edge with them in a hurry. Anyone know where I can find them?
 
These new model diamond rods insert in the Sharpmaker base just like the ceramic rods, they don't fit over them.
 
Very cool. The ones I used only slipped over one side. Thanks for the quick replies.
 
can someone tell me why they are soo pricy, the ceramics (even the ultra fine) are less than 10 a pop, how do these become over 30 a pop? I know that all diamond stuff is not that expensive.
 
Sal at Spyderco spent a long time working on these new diamond rods. There were many requests for them, but he wouldn't put them out till he thought that he had it right. If you apply high pressure to a diamond hone you can strip the diamonds off rather quickly. Since the diamond rods are only about 1/4 as wide as a diamond bench hone you get 4-times as much pressure on the diamonds for a given amount of honing force. He was very careful to make hones that would resist losing their diamonds. The pressure situation is much more extreme along the edges of the rods. They are about 1/25 as wide as a bench hone for 25x the vulnerability to stripping diamonds. When you use the diamond rods on serrated edges you need to use extremely light pressure if you want your diamonds to last.
 
Jeff Clark said:
Sal at Spyderco spent a long time working on these new diamond rods. There were many requests for them, but he wouldn't put them out till he thought that he had it right. If you apply high pressure to a diamond hone you can strip the diamonds off rather quickly. Since the diamond rods are only about 1/4 as wide as a diamond bench hone you get 4-times as much pressure on the diamonds for a given amount of honing force. He was very careful to make hones that would resist losing their diamonds. The pressure situation is much more extreme along the edges of the rods. They are about 1/25 as wide as a bench hone for 25x the vulnerability to stripping diamonds. When you use the diamond rods on serrated edges you need to use extremely light pressure if you want your diamonds to last.
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Good info, thanks Jeff :)
 
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