Groove milling tools | CoroMill® 328 CoroMill® 328, insert for thread milling​​ For internal threads. 60° V-profile CF Common data values NT 1 Metric (mm) P S H K M N 1025 1025 1025 1025 1025 1025 Ordering code HA HB PDX CF TPN TPX TPIN TPIX [mm] [mm] [mm] [mm] [mm] [mm] 328R13-150 VM-TH ○ ○ ○ ○ ○ ○ 2.31 0.13 2.0 0.19 1.50 3.50 7 16 328R13-400 VM-TH ○ ○ ○ ○ ○ ○ 4.06 0.41 2.6 0.50 4.00 6.00 4 6 ● = First choice ○ = Good choice For internal threads. UN 60° full form CF Common data values NT 1 Metric (mm) P S H K M N 1025 1025 1025 1025 1025 1025 Ordering code HA HB PDX CF TPI [mm] [mm] [mm] [mm] 328R13-04 UN-TH ○ ○ ○ ○ ○ ○ 4.12 0.68 2.5 0.79 4 328R13-08 UN-TH ○ ○ ○ ○ ○ ○ 2.06 0.34 1.4 0.40 8 328R13-12 UN-TH ○ ○ ○ ○ ○ ○ 1.38 0.23 1.0 0.26 12 328R13-16 UN-TH ○ ○ ○ ○ ○ ○ 1.02 0.16 0.8 0.20 16 ● = First choice ○ = Good choice 343