Carbide tips

[triw51]

I made a carbide tool holder and am having success using it.
Is there a big difference between carbide tips? I purchased some from
Global Tools for about $25 for 10 ($2.50 each). I have also seen some selling for $14 to $15 dollars apiece is there that much difference?
Also what is the avantage of the radis side on some of the tips as comparied to a stright side?

Thanks

 

[Justturnin]

I wouldn't think that much of a difference. I have some from Global and have not broke into them yet but I cant imagine one of those $14 cutters will outlast 5 of the $2.50 cutters which would be about the same cost.

 

[SCR0LL3R]

I wouldn't think that much of a difference. I have some from Global and have not broke into them yet but I cant imagine one of those $14 cutters will outlast 5 of the $2.50 cutters which would be about the same cost.

You gotta compare apples to apples. From what I have seen, it's only the round cutters that are that expensive.

If you look at woodchuck-tools.com , their inserts are only about 2.5X the price of Global's and, according to Ken at least, last about twice as long. You also get the 15r2, which I don't think Global has, and round cutters if you wish. I was important for me to be able to get them all from one place since I am in Canada... Ken also claims his tips re-sharpen better for those of you that have the means to do so. I realize I am taking him at his word on all of this.

 

[jjudge]

square bits may catch the corners a bit more easily ... digging in

radiused bits tend not to.

But, I've come to use the square ones more than the radiused ones.

 

[KBs Pensnmore]

As far as using them for wood/PR etc is concerned, I don't think it would matter, when it comes to using them for turning metal there is a HUGE difference. Different grades are required for different metals.
Kryn

 

[randyrls]

William; There are two categories of tips. Looking at the side profile, a tip that has an angle of 75 to 90 degrees will peel acrylic like butter but will tear wood instead of slicing it. Side profiles with a 45 to 60 degree angle will slice wood like butter, but will be very "grabby" on acrylic. It all depends on what material you are using.

Off to a Habitat for Humanity build project now.