What is ER tool holder_ ER Tool shank size

Er tool handle and er collet, also known as spring collet, er nut, bt pull pin, er elastic tool handle can be used to hold milling cutter and tap.

Bt30 has ER16-70, ER16-100 and ER16-150. ER20-70, ER20-100, ER20-150。 ER25-70, ER25-100, ER25-150。 ER25-70, ER32-100, ER32-150。



Bt40 has ER16-70, ER16-100 and ER16-150. ER20-70, ER20-100, ER20-150。 ER25-70, ER25-100, ER25-150。 ER25-70, ER32-100, ER32-150。 ER40-100,ER40-150



Bt50 has ER16-100 and ER16-150. ER20-100, ER20-150。 ER25-100, ER25-150。 ER32-100, ER32-150。 ER40-100,ER40-150



Er tool handle is a kind of accessory used to connect tool machine tool on the spindle of drilling, tapping, milling machine or machining center, also known as er tool handle. It is a kind of fixed locking device used to fix and reinforce the parts that need to be modified and processed.