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    ER Collets, ER Collet Nuts & Wrenches

    Huge selection of ER collets from 10 micron to 2 micron high accuracy runout in sizes from ER11-ER50. Full range of wrenches and nuts in different geometries.

      Shop Now ER Collets & Sets

      The UK's biggest range of ER collets for high precision or general machining. Ultra-precision collets with <0.002mm runout available.

      Shop Now ER Collet Chuck Wrenches
      Wrench suitable for tightening or loosening ER collet chuck with either standard or mini nut.
      Shop Now ER Collet Chuck Nuts
      Suitable for use with ER Collet chucks that use a standard or mini nut.
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    1. ER Collet Chuck Wrenches & Nuts
    2. ER Collets & Sets
    Less
    ER Size
    1. ER11
    2. ER16
    3. ER20
    4. ER25
    5. ER32
    6. ER40
    Less
    Clamping Diameter (mm)
    1. 0.5-1
    2. 1
    3. 1-1.5
    4. 1-2
    5. 1.5
    6. 1.5-2
    7. 10
    8. 10-11
    9. 10-12
    10. 10.5
    11. 11
    12. 11-12
    13. 11-13
    14. 11.5
    15. 12
    16. 12-13
    17. 12-14
    18. 12.5
    19. 13
    20. 13-14
    21. 13-15
    22. 14
    23. 14-15
    24. 14-16
    25. 15
    26. 15-16
    27. 15-17
    28. 16
    29. 16-17
    30. 16-18
    31. 17
    32. 17-18
    33. 17-19
    34. 17.5
    35. 18
    36. 18-19
    37. 18-20
    38. 19
    39. 19-20
    40. 19-21
    41. 2
    42. 2-2.5
    43. 2-3
    44. 2.5
    45. 2.5-3
    46. 2.8
    47. 20
    48. 20-21
    49. 20-22
    50. 21
    51. 21-22
    52. 21-23
    53. 22
    54. 22-23
    55. 22-24
    56. 23
    57. 23-24
    58. 23-25
    59. 24
    60. 24-25
    61. 24-26
    62. 25
    63. 25-26
    64. 25-27
    65. 26
    66. 26-28
    67. 27
    68. 27-29
    69. 28
    70. 28-30
    71. 29
    72. 29-31
    73. 3
    74. 3-3.5
    75. 3-4
    76. 3.5
    77. 3.5-4
    78. 30
    79. 30-32
    80. 31-33
    81. 32-34
    82. 4
    83. 4-4.5
    84. 4-5
    85. 4-6
    86. 4.5
    87. 4.5-5
    88. 5
    89. 5-5.5
    90. 5-6
    91. 5-7
    92. 5.5
    93. 5.5-6
    94. 6
    95. 6-6.5
    96. 6-7
    97. 6-8
    98. 6.5
    99. 6.5-7
    100. 7
    101. 7-8
    102. 7-9
    103. 8
    104. 8-10
    105. 8-9
    106. 8.5
    107. 9
    108. 9-10
    109. 9-11
    Less
    Tapping Collet Square
    1. 11
    2. 12
    3. 14.5
    4. 16
    5. 2.1
    6. 2.7
    7. 3
    8. 3.4
    9. 4
    10. 4.3
    11. 4.9
    12. 5.5
    13. 6.2
    14. 7
    15. 8
    16. 9
    Less
    Price
    Less
    ER Size
    1. ER11
    2. ER16
    3. ER20
    4. ER25
    5. ER32
    6. ER40
    7. ER50
    Less
    Nut Type
    1. Balanced Nut
    2. Hex Nut
    3. Mini Nut
    4. Standard Nut
    Less
    Individual or Set
    1. Individual
    2. Set
    Less
    Run Out
    1. 10 Micron Run-Out
    2. 2 Micron Run-Out
    3. 5 Micron Run-Out
    Less
    ER Wrench Type
    1. For Balanced Nut
    2. For Hex Nut
    3. For Mini Nut
    4. For Standard Nut
    Less
    Collet Type
    1. Anti-Corrosion High Precision (5 Micron Run-Out)
    2. Anti-Corrosion Ultra Precision (2 Micron Run-Out)
    3. High Precision (5 Micron Run-Out)
    4. High Pressure Through Coolant (10 Micron Run-Out)
    5. Square Drive for Tapping
    6. Standard (10 Micron Run-Out)
    7. Tension Type Square Drive for Tapping
    8. Through Coolant (10 Micron Run-Out)
    9. Through Coolant High Precision (5 Micron Run-Out)
    Less
    Set Quantity
    1. 10
    2. 11
    3. 12
    4. 13
    5. 14
    6. 15
    7. 18
    8. 23
    9. 4
    10. 5
    11. 6
    12. 7
    13. 8
    14. 9
    Less
    Performance
    1. 3
    2. 4
    3. 5
    Less
    Brand
    1. Cutwel Pro
    2. Korloy
    Less