Drilling Insert SPMG, WCMT SPMG Alloy Steel Finishing Stainless Steel Semi Finishing Cast Iron Medium 11° H Hard Steel Roughing Dimension (mm) Application Material Type Designation Grade Ic S r d1 P M K H CP3020 ★★★ ◎ ○ ◎ SPMG 050204-MG 5.0 2.38 0.4 2.30 CP3050 ★★★ ◎ ○ ◎ CP3020 ★★★ ◎ ○ ◎ SPMG 060204-MG 6.0 2.38 0.4 2.65 CP3050 ★★★ ◎ ○ ◎ ★ Acceptable   ★★ Recommended   ★★★ Excellent   ◎ First Recommend   ○ Second Recommend Cutter Page : D02~D04 WCMT Alloy Steel Finishing Stainless Steel Semi Finishing Cast Iron Medium H Hard Steel Roughing Dimension (mm) Application Material Type Designation Grade lc S r P M K H CP4020 ★★★ ◎ ○ ◎ 030208-MG 5.56 2.38 0.8 CP4050 ★★★ ◎ ○ ◎ CP4020 ★★★ ◎ ○ ◎ 040208-MG 6.35 2.38 0.8 CP4050 ★★★ ◎ ○ ◎ CP4020 ★★★ ◎ ○ ◎ WCMT 050308-MG 7.94 3.18 0.8 CP4050 ★★★ ◎ ○ ◎ CP4020 ★★★ ◎ ○ ◎ 06T308-MG 9.53 3.97 0.8 CP4050 ★★★ ◎ ○ ◎ CP4020 ★★★ ◎ ○ ◎ 080412-MG 12.7 4.76 1.2 CP4050 ★★★ ◎ ○ ◎ ★ Acceptable   ★★ Recommended   ★★★ Excellent   ◎ First Recommend   ○ Second Recommend Cutter Page : D05~D07 D01