INTRODUCTION ER, SC & SHRINK Collets Shanks Collet Options HSK DIN 69893 Form A/E ER-SPR CAMFIX DIN 26623-1 ER-SEAL BT MAS-403 ER-SEAL JET2 DIN 69871 ER-SRK ISO A.N.S.I B5.18-DIN 2080 GTIN ER32 ST Straight Shank ER-ODP MT Morse Taper 944 ISCAR