ER20A COLLET NUT (2 Pcs)

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370

ER nuts, also known as ER collet nuts, are used for holding tools in place in CNC applications and other situations where precision and reliability are important.

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Description

  • ER20 Collet Nut holds all ER20 collets
  • Made from alloy steel hardened to 54 – 56rc
  • Precision ground ID thread and taper
  • Has an internal thread of M25 X 1.5 pitch
  • Outside diameter is 1.340 inches (34mm)
  • Outside hex for tightening is 30mm across flats
  • ER20-Wrench works on this collet nut

An ER20A nut is a hexagon clamping nut used in spindle motors. It is made from high-quality alloy steel and is used with ER style collet chucks.

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