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ER11 spring collet set with multiple bore sizes

Ruth's sister

Ruth's sister ER11 Spring Chuck 1/1.5/2/2.5/3/3.175/4/5/6/6.35/7mm internal power cable

SKU CH-GT4Q-P0M85

ER11 spring collet set holds shanks from 1 to 7 mm for CNC engraving and milling machines

  • ER11 collet range covers 1 mm to 7 mm
  • Spring collet design suits CNC engraving and milling lathe chucks
  • Multiple metric and imperial bore sizes from 1.5 mm to 6.35 mm
  • New condition ensures reliable tool-holding performance

ER11 Spring Chuck for CNC Tool Holding

The Ruth's sister ER11 spring chuck is a precision collet holder designed for CNC engraving machines and milling lathes. It secures cutting tools or workpieces by clamping spring collets across a range of metric and imperial shank diameters. This component is intended for machinists and hobbyists who need reliable tool retention during routing, milling or engraving operations.

Replaces Worn Collets for Consistent Grip

This chuck replaces a damaged or worn ER11 holder that no longer provides uniform clamping force across the full collet range. Upgrading is worthwhile when run-out increases, tools slip under load or collets no longer seat cleanly. It is not suited for users who require larger ER series tapers or hydraulic and shrink-fit holding systems for heavy-duty production work.

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Price $15.99
Typical for this category: the median of 7,839 items is $14.99.

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Specifications

No published specifications for this item yet.

Questions about this item

What ER collet size does this spring chuck accept?

This spring chuck uses the ER11 standard, so it fits any ER11 collet nut and spindle taper designed for that size.

Which collet bore sizes are included for tool shank mounting?

The set supplies collets with internal diameters of 1, 1.5, 2, 2.5, 3, 3.175, 4, 5, 6, 6.35 and 7 mm to match common shank sizes.

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