For bore diameters from ⌀ 2mm (.078"). The popular MicroCut F tools are in use by many machineshops for tube end treatment and chamfering of small to medium size threads and countersinks.
All chamfer cutters feature a weldon shank and hardened insert pocked. The milling cutter "FW "1108 RSDS-06" comes with coolant through.
You're well served with Denitool inserts. The MicroCut F milling cutters cover the hole material spectrum.