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ER Collet Nuts & Wrenches

  • Replacement nuts & wrenches for ER collet holders
  • Nuts available in mini, hex & spanner
To order any of these items enter the Part Number into the search bar above. (This will take you to the product page where you can add the item to the shopping cart)
ER Collet Nuts (ER Collet Wrenches in Chart Below)
Nut Diameter Nut Length
Collet Series Nut Type mm Inch mm Inch Threads Part Number
ER08 Mini 12.2 .48 11.3 .44 - CN-ER08MN-K
ER11 Mini 16 0.63 11.3 .44 M13 X .75 CN-ER11MN-K
Hex 19 0.75 11.3 .44 M14 X .75 CN-ER11H-K
ER16 Mini 22 0.87 17 .67 M19 X 1 CN-ER16MN-K
Hex 28 1.10 17 .67 M22 X 1.5 CN-ER16H-K
ER20 Mini 28 1.10 19 .75 M24 X 1 CN-ER20MN-K
Hex 34 1.34 19 .75 M25 X 1.5 CN-ER20H-K
ER25 Mini 35 1.38 20 .79 M30 X 1 CN-ER25MN-K
Spanner 42 1.65 20 .79 M32 X 1.5 CN-ER25S-K
ER32 Spanner 50 1.97 22 .87 M40 X 1.4 CN-ER32S-K
ER40 Spanner 63 2.48 25 .98 M50 X 1.5 CN-ER40S-K

To order any of these items enter the Part Number into the search bar above. (This will take you to the product page where you can add the item to the shopping cart)
ER Collet Wrenches
Collet Series Ref# Brand Part Number
ER08 - Kingston WR-ER08MN
ER11 CN-111 Kingston WR-ER11MN
CN-110 Kingston WR-ER11H
ER16 CN-162 Kingston WR-ER16MN
CN-160 Kingston WR-ER16H
ER20 CN-201 Kingston WR-ER20MN
CN-200 Kingston WR-ER20H
ER25 - Kingston WR-ER25MN
CN-250 Kingston WR-ER25S-KT
ER32 CN-320 Kingston WR-ER32S
ER40 CN-400 Kingston WR-ER40S