BT30 ER20 Tension Compression Tap Holder
Part Number: BT30 ER20-TCTH
BT30 ER20 Tension/Compression Tapping toolholder that accepts ER20 collets.
Allows 5mm of extension travel and 5mm of compression travel. Good quality and works well on Tormach 1100MX and 770MX mills to smooth minor RPM variations when using rigid tapping.