ISO Insert Internal To o l h o l d e r - Quick Guide Positive type Min. bore diameter DMIN (mm) Style Designation & Application Material Page01020304050 SEZPR/L Steel ø5.5 ø6.5 Back boring D088 Insert : EP†† Carbide ø5.5 ø6.5 SVJCR/L Internal sphere cutting Steel ø16 ø20 D037 Insert : VC†† SVJBR/L Internal sphere cutting Steel ø25 ø30 D036 Insert : VB†† SYQBR/L Steel ø17 ø21.5 30˚ Boring, undercutting & profiling D084 Insert : YW†† Carbide ø17 ø21.5 SYUBR/L60˚Boring & internal profiling Steel ø20 D076 Insert : YW†† Carbide ø20 ø24.5 Clamp on ISO Min. bore diameter DMIN (mm) Style Designation & Application Insert Material Page01020304050 CTFPR/LBlind hole boring Steel ø16 ø40 D044 Insert : TP†† (without hole) Carbide ø16 ø20 CSKPR/L Through boring Steel ø20 ø32 D039 Insert : SP†† (without hole) D008 www.tungaloy.com