Toolmaster 8 piece collet & chuck set with collets that will cover both metric and imperial end mill and slot drill shanks from 6mm & 1/4" to 20mm & 3/4"
Features
Hardened and Precision Ground ER32 x NT30 Collet Chuck
M12 x 1.75mm Draw Bar Thread
Includes 6 x ER32 collets (Ø7-6, 8-7, 10-9, 13-12, 16-15, 20-19mm)