Carbon steel / AlloysteelQPPP
Stainless steelPQPM
Cast ironQK
Non-ferrous metalsQ PN
Dimension (mm)Angle (°)ToleranceCarbideder
InsertDescriptionCWSD1REW1CUTDIAPSIRRCW min.CW max.PVD PR1725 PR1535 PR1225- PDL025 KW10Applicable toolhol
TKF 12L050-NB-20DR 12L070-NB-20DR0.5 0.75 8N N N NN N
±0.03 RE CW W1 D112L100-NB-20DR 12L150-NB-20DR1 1.512 12N N N NN N
S CUTDIA RE PSIRR12L200-NB-20DR 12R050-NB-20DR 12R070-NB-20DR2 0.5 0.78.750312 5 820- 0.03+ 0.03N N N N N NN N NH11, H16
Without Chipbreaker12R100-NB-20DR112N NN
12R150-NB-20DR1.512N NN
12R200-NB-20DR212N NN

Lead angle (PSIRR) shows the angle when installed in toolholder. As Fig. 1 of H12 shows, the cut-off diameter of the insert (CUTDIA) is indicated when the top of the cut-off edge progresses 1mm from the center. H Right-hand shown