Milling Insert JDMW, OFMT JDMW Alloy Steel Finishing Stainless Steel Semi Finishing Cast Iron Medium H Hard Steel Roughing Dimension (mm) Application Material Type Designation Grade A B S r P M K H CP3020 ★★★ ★★ ◎ ○ ○ ○ JDMW 120420ZDSR-RG 2.5 12 4.76 2.0 CP3050 ★★★ ★★ ◎ ○ ○ ○ ★ Acceptable   ★★ Recommended   ★★★ Excellent   ◎ First Recommend   ○ Second Recommend Cutter Page : B24 OFMT Alloy Steel Finishing Stainless Steel Semi Finishing Cast Iron Medium H Hard Steel Roughing Dimension (mm) Application Material Type Designation Grade A S r P M K H CP3020 ★★ ★★★ ★★ ◎ ○ ○ ○ OFMT 05T3TN-MG 12.7 3.8 0.6 CP3050 ★★ ★★★ ★★ ◎ ○ ○ ○ CP3020 ★★ ★★★ ★★ ◎ ○ ○ ○ OFMT 05T3TN-RG 12.7 3.8 0.6 CP3050 ★★ ★★★ ★★ ◎ ○ ○ ○ ★ Acceptable   ★★ Recommended   ★★★ Excellent   ◎ First Recommend   ○ Second Recommend Cutter Page : B25 B04