Some of this will be old news to many of you, but for some, like me, it will be new....
Having visited bogs recently I had one of those light bulb moments when I saw one of his lathe tools..
Carbide inserts are advertised as having four cutting edges, but I could never figure out how to use two of them,
A pic tells all, buy a toolholder that turns the tip around !! There is another type as well. Most of us start with the one on the left, the right one is a SCBCR type.
Whilst out doing my "duty" with the missus yesterday (Saturday) I spotted these on the market. Some diamond coated thingamajigs, a little like cut off saws.
Don't the mind ever rest !!!
I mounted one up to see if it would sharpen a tungsten tip. My "other" stones wouldn't touch carbide. merely polish the stuff.
Here's a well abused tip, well no tip as its gone....please excuse the state of the toolholder, that's what happens when the carbide tip breaks and the toolholder rams itself into the work....
Using a small wedge to set the angles
And here is the result, nice and sharp it is too. The grinding looks coarse, this is just the macro photography getting up close. Bear in mind how small an 06 size tip is.
Add a slight radius to the nose
Quite simply it worked, not only that it worked very quickly. The grinding is very fast and you need to be careful not to grind the tip away altogether !! Well, beyond any usefulness at least.
I recon you could get away with a couple of re-sharpens at least.
A nice cheap money saving tip......
