I don't like them because it is much easier to sharpen a HSS boring bar.
You can also use these carbide bars but you will first have to sharpen them. The hss version can be used directly after buying them. Carbide boring bars are very sensitive to things like interrupted cut and inpacts from other tools. Also they don't forgive an immediate loss of rpm (for example if you switch the motor of though it still cuts)
Last but not least is the carbide used on these cheap tools not of a good quality...
(I used some carbide tools on my watchmakers lathe for the very hard stuff; they were cheap but the carbide splits at the slightest "misuse" of it... Now i don't use them any more because after almost every cut they need do be sharpened...)
Oh and most of the problems just happen with cheap boring bars; if you buy quality tools, most of it is different!
Florian
You can also use these carbide bars but you will first have to sharpen them. The hss version can be used directly after buying them. Carbide boring bars are very sensitive to things like interrupted cut and inpacts from other tools. Also they don't forgive an immediate loss of rpm (for example if you switch the motor of though it still cuts)
Last but not least is the carbide used on these cheap tools not of a good quality...
(I used some carbide tools on my watchmakers lathe for the very hard stuff; they were cheap but the carbide splits at the slightest "misuse" of it... Now i don't use them any more because after almost every cut they need do be sharpened...)
Oh and most of the problems just happen with cheap boring bars; if you buy quality tools, most of it is different!
Florian
