2mm (TCMT 110202 / TCGT 110202) nose radius is ideal for deep boring because it reduces radial forces
4mm radius (TCMT 090204) can be used if machine rigidity is high
0mm MGMN600 Indexable Carbide Inserts
If you see built-up edge (BUE) at low speeds
"Switched to CTD3 AH725 for stainless steel parting
CNMG120404PS PR1125 (10pcs) TNMG160402-11 NS9530 2mm (TCMT 110202 / TCGTPVD Coated Carbide: PR1125, Designation: CNMG120404PS PR1125 Corner Radius (in) RE: 1 64 ,General purpose chipbreaker. More stable due to large con,Stainless Steel: Light Interruption 2nd Choice,HRSA: Light Interruption 2nd Choice ,Color: Purple Red , Coating Main Component: TiAlN,Advantages: Hard TiAlN base PVD coated super micro grain carbide, superior toughness and heat resistance,Application: Finishing and light interrupted machining of stainless