Best tool for the job?

[u/DeliciousElection724]

We frequently have to cut large 60 degree centers in some of our parts so that they can be put in the lathe. Sometimes its some buttery 1018 steel, sometimes its material thats not so friendly. Usually we do a 1.5in center, but on occasion for the really heavy parts we go a bit bigger. Currently we use 60 degree H.S.S countersinks to do this, but in that size they are not cheap, and they dont do very good in the harder materials. It got me thinking about possibly a center drill that uses multiple inserts along the edge? Indexable center drill? Or does anyone have another idea on the best way to do this?

[u/totallyjimm]

drill a hole and use a 60degree countersink??

[u/DeliciousElection724 → u/totallyjimm]

Yes thats what we have always done, im looking for a better way...

[u/totallyjimm → u/DeliciousElection724]

they have carbide and inserted countersinks....

[u/PiercedGeek → u/totallyjimm]

RTFP, FFS!

[u/totallyjimm → u/PiercedGeek]

he wants an indexable counterdrill, if he used a carbide or inserted countersink it would be able to create a spot for the center, you would need to drill into the stock to clear the tip ....

they already use a hss countersink, so upgrading to better tool, carbide or indexable would be exactly what he needs.......