Tuscan ER Collet Chucks

Tuscan ER Collet Chucks, available in BT30, BT40, BT50, SK40 and HSK63A tapers and in ER11, ER16, ER20, ER25 and ER32 collet nut sizes. All Tuscan ER Collet Chucks are balanced to 25,000RPM @ G2.5 as standard – a tool holder assembly balanced to G2.5 has TWO & HALF TIMES as much balance than one with a G6.3 rating, which can help improve tool life and component surface finish.