Precise ER32 Collets Part No# Size (mm) Part No# Size (inch) ER32-4 3~4 ER32-362 1/8" ER32-5 4~5 ER32-363 ER32-6 5~6 ER32-364 ER32-7 6~7 ER32-365 1/4" ER32-8 7~8 ER32-366 ER32-9 8~9 ER32-367 ER32-10 9~10 ER32-368 3/8" ER32-11 10~11 ER32-369 ER32-12 11~12 ER32-370 ER32-13 12~13 ER32-371 1/2" ER32-14 13~14 ER32-372 ER32-15 14~15 ER32-373 ER32-16 15~16 ER32-374 5/8" ER32-17 16~17 ER32-375 ER32-18 17~18 ER32-376 ER32-19 18~19 ER32-377 3/4" ER32-20 19~20 ER32-378