Set contains 16 collets: ER25/1, ER25/2, ER25/3, ER25/4, ER25/5, ER25/6, ER25/7, ER25/8, ER25/9, ER25/10, ER25/11, ER25 /12, ER25/13, ER25/14, ER25/15, ER25/16.
ER collets are made of tool steel.
Thanks to its design, ER collets do not deform even when clamped to the minimum diameter. Collets do not crack with minor impacts. They have a smooth surface without sharp edges and precise geometry.
Images are for illustration purposes only.