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- Jan 20, 2018
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Looks about right. We bought a bunch of the multi-insert cutters of that style with just a hold-down screw, no clamp. They were cheap and used the same TPG-32x as we used on the lathes. They are an old tech cutter and insert, but they work. As you noticed, it may be positive rake, but just barely. You will probably want to get some 322 or 323 inserts to improve finish.Speaking of fly cutters, can I assume the this TPG 321 insert is installed correctly? Is this an example of a positive rake?
I hate to be critical, but you are paying a substantial premium to avoid Chinese made and, at least in this case
that cutter looks worse than what the Chinese are producting. I can understand if your choice is driven by considerations other than price, but you shouldn't have to settle for reduced quality in the bargain. Here's one of the few I found that uses TPG inserts, most use newer style inserts.
![www.aliexpress.com](/proxy.php?image=https%3A%2F%2Fae01.alicdn.com%2Fkf%2FS67bfd53ef26e4e3e9637656660c852a0E%2FMilling-Cutters-Tools-TP16-50-22-3T-63-22-3T-50-22-3T-Indexable-Face-Milling.jpg&hash=de5fd3addcad1848cc5b633c9a3c0668&return_error=1)
22.5US $ 55% OFF|Milling Cutters Tools Tp16 50-22-3t 63-22-3t 50-22-3t Indexable Face Milling Cutter Mill Head For Tpkn Carbide Insert - Milling Cutter - AliExpress
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