The STA system from Somma is a single-usage insert form tool system that was designed for those who prefer not to have to re-sharpen their inserts or dovetails, and instead want to simply replace the insert after it is worn.
Dovetail holders, Davenport-specific 5/8" holders and circular holders for Browne & Sharpe and Davenport machines are offered with either a 0-degree top rake angle for cutting nonferrous materials or a 5-degree top rake angle for cutting ferrous metals.
The inserts can fit forms as much as 1-1/4" width. The STAs use a simple, yet rugged, spacer as opposed to requiring an expensive custom-made, screwed-on anvil, the company says.
The system offers the ability to purchase an EDM/grinding fixture as well as the insert blanks. This will allow users to greatly reduce lead time by making their own formed inserts in-house.
The STA single-usage insert and holder system can be sent on a trial basis where the holder can be returned for credit if the user is not completely satisfied.
Editor PickCoroMill 390 Silent Tools Bring Security to Titanium Pocket Machining
The CoroMill 390 Silent Tools can be ordered in diameters from 20 to 32 mm. It is available for both the new insert size 07, as well as insert size 11, with options for either cylindrical shank or Coromant Capto coupling.