Does anyone here have some experience with the Iscar DR-Twist insert drills and how they might compared with Sandvik's 880's?
I see iscar uses the same insert style inside and outside. Do you use the same grade like IC908 for each or buy 2 different grades like a 9080 that can take the higher SFM for the peripheral? How their insert life vs Sandvik's 1144-2044 grades?
So far I've had good success with the 15/16" 5xD 880 I have, it squeals like crazy but it runs all day going 4" and 4.5" deep in 316, duplex on one insert edge, parts I'm running now go 4" deep in 316 and I walk away from it and work on another machine and trust it, never had an insert quit in the cut yet. Is the DR-twist as reliable? I'm looking at around 2" size, maybe 2.25".
I'd like to give the Walter 4120's a try but can't find anyone around that sells their stuff anymore.
thanks
I see iscar uses the same insert style inside and outside. Do you use the same grade like IC908 for each or buy 2 different grades like a 9080 that can take the higher SFM for the peripheral? How their insert life vs Sandvik's 1144-2044 grades?
So far I've had good success with the 15/16" 5xD 880 I have, it squeals like crazy but it runs all day going 4" and 4.5" deep in 316, duplex on one insert edge, parts I'm running now go 4" deep in 316 and I walk away from it and work on another machine and trust it, never had an insert quit in the cut yet. Is the DR-twist as reliable? I'm looking at around 2" size, maybe 2.25".
I'd like to give the Walter 4120's a try but can't find anyone around that sells their stuff anymore.
thanks