High-pressure coolant is highly recommended for Stainless Steel
"I use these for 304 stainless milling
75-Degree Turning Lead Angle: Engineered with a strict 75° lead angle (75° SCEA) optimized exclusively for aggressive external longitudinal turning
A: T9125 is tougher and better for interrupted cuts or unstable setups
It handles light to medium interrupted cuts much better than more brittle cermet grades
DNGA150408 A65 (10pcs) LNKT1506EN-ZR YBG302 High-pressure coolant is highly recommendedAluminum Oxide Ceramic: A65, Designation: DNGA150408 A65 Corner Radius (in) RE: 1 32 ,Color: Black, Coating Main Component: Al2O3+TiC ,Hardness of Substrate (GPa): 20. 1,Fracture Toughness (MPam): 4. 1, Transverse Strength (MPa): 980,Advantages: Aluminum Oxide and Titanium Carbide ceramic (Al2O3+TiC),Application: Semi roughing to finishing of cast iron, and hard materials