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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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      Product Range
      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