Collets and Sleeves TG50 Series (TG50 Series continued) 50TGC 50TGCHP 50TG standard — 50TGHP high precision — collet capacity collet capacity D1 standard coolant high precision coolant max inch min inch L9 11/64 — 50TGC0172 — — .1719 .1669 .861 11/64 50TG0172 — — — .1720 .1563 .860 3/16 — — 50TGHP0188 — .1875 .1775 .865 3/16 — 50TGC0188 — 50TGCHP0188 .1875 .1825 .866 3/16 50TG0188 — — — .1880 .1719 .865 13/64 50TG0203 — — — .2030 .1875 .870 13/64 — 50TGC0203 — — .2031 .1981 .871 7/32 — 50TGC0219 — — .2188 .2138 .876 7/32 50TG0219 — — — .2190 .2031 .875 15/64 50TG0234 — — — .2340 .2188 .880 1/4 — 50TGC0250 — 50TGCHP0250 .2500 .2450 .885 1/4 — — 50TGHP0250 — .2500 .2400 1.139 1/4 50TG0250 — — — .2500 .2344 1.139 17/64 — 50TGC0266 — — .2656 .2606 .890 17/64 50TG0266 — — — .2660 .2500 1.144 9/32 50TG0281 — — — .2810 .2656 1.148 9/32 — 50TGC0281 — — .2813 .2763 .894 19/64 50TG0297 — — — .2970 .2813 1.153 5/16 50TG0312 — — — .3120 .2969 1.158 5/16 — 50TGC0312 — 50TGCHP0312 .3125 .3075 .904 5/16 — — 50TGHP0312 — .3125 .3025 1.158 21/64 50TG0328 — — — .3280 .3125 1.163 21/64 — 50TGC0328 — — .3281 .3231 .908 11/32 — 50TGC0344 — — .3438 .3388 .913 11/32 50TG0344 — — — .3440 .3281 1.167 23/64 50TG0359 — — — .3590 .3438 1.172 23/64 — 50TGC0359 — — .3594 .3544 .918 3/8 — 50TGC0375 — 50TGCHP0375 .3750 .3700 .922 3/8 50TG0375 — — — .3750 .3594 1.177 3/8 — — 50TGHP0375 — .3750 .3650 1.177 25/64 — 50TGC0391 — — .3906 .3856 1.182 25/64 50TG0391 — — — .3910 .3750 1.181 13/32 50TG0406 — — — .4060 .3906 1.186 13/32 — 50TGC0406 — — .4063 .4013 1.187 27/64 — 50TGC0422 — — .4219 .4169 1.192 27/64 50TG0422 — — — .4220 .4063 1.191 7/16 — — 50TGHP0438 — .4375 .4275 1.195 7/16 — 50TGC0438 — 50TGCHP0438 .4375 .4325 1.196 7/16 50TG0438 — — — .4380 .4219 1.196 29/64 50TG0453 — — — .4530 .4375 1.200 (continued) WWW.WIDIA.COM I17 Collets and Sleeves