Carbide Milling Insert Insert Shape Square Positive Chip-Breaker F55 Grade WKP25 Inscribed Circle .500 In. Insert Thickness .187 In. No of Edges 4 Nose Radius .020 In. Coating CVD Rake 11 Degrees Cutting Direction Right Mounting Style Screw Held Workpiece Material Cast Iron Steel ANSI Number SPGT1204EDR-F55 WKP25 Application Milling