Ratchet Spanners

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A ratchet spanner or wrench uses a mechanism which allows an open-ended, flare or ring head to turn a fastener in one direction but not the other while remaining fitted to the fastener head. By turning the spanner over or flicking a lever, it changes the direction of movement.


This piece of equipment is essential to any toolbox as it can tighten and loosen a nut or bolt, and by applying the correct amount of torque to the fastening, it can save time and effort. Some manufacturers choose to etch the arrows of the torque direction near the lever, making it easier for the user to identify the direction to tighten or loosen in.


Combination spanners only have one ratchet head, with a non-ratcheted head on the other end. They combine a 2 in 1 use where the non-ratcheted end can start or finish the fastening and the ratcheted end can do the hard work, giving the benefit of minimal effort for the end user.


Common ratchet spanner head types:


  • Ring Head: The most frequently used type of ratchet head. They are especially useful as they apply force to all sides of the fastener, offering additional grip to avoid coming off the nut or bolt whilst the tool is in use.

  • Reversible: The simple reversing mechanism allows to user to adjust the direction of the ratchet simply by moving the lever across on the tool.

  • Flare Nut Spanner: Also known as a 'crow's foot' spanner or a 'brake nut' spanner, it provides contact at six points on the fastener, allowing a secure grip.

  • Open Ended Spanner: An essential spanner for any tool box, it can also come with a ratchet mechanism meaning this versatile tool can be used across various settings.

  • Open Ended Ratchet: This ratchet has an altered profile which can catch the fastening in one direction to apply the torque to loosen or tighten it. It can only move in one direction and can be turned over to change the direction of the torque application.

  • What are ratchet spanners made of?


    Most spanners are made with Chrome Vanadium steel which is structurally strong. It's toughness enables it to withstand high fatigue and wear, with the added benefit of being resistant to corrosion and oxidisation, improving the life of the tool.


    What size do ratchet spanners come in?


    Ratchet spanners are available in a variety of metric and imperial sizes which makes them a flexible tool for any setting that they are required to be used in.

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    RS Stock No. 910-2896
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.467S.7SLS
    Brand :Facom
    THB840.74
    Each
    Units
    7 mm Reversible - Hexagon Ergonomic 90 mm - Satin Chrome Yes -
    RS Stock No. 669-8142
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.467BF.8
    Brand :Facom
    THB653.19
    Each
    Units
    8 mm Combination; Hinged 467BF.8 - - 127 mm - Satin Chrome - -
    RS Stock No. 774-6716
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.073273
    Brand :Wera
    THB887.58
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    Units
    13 mm Combination, Double Ended Joker Hexagon - 177 mm - Nickel Chrome Plated - Chrome Molybdenum Steel
    RS Stock No. 829-2838
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.467R.10
    Brand :Facom
    THB789.32
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    Units
    10 mm Double Ratchet, Durable Open End, Fast Work, Secure Work, Versatile, 2-in-1 Open End 467R.10 - - 158 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 669-8149
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.467BF.10
    Brand :Facom
    THB746.00
    Each
    Units
    10 mm Combination; Hinged 467F.10 - - 136 mm - Satin Chrome - -
    RS Stock No. 381-4408
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.4-87-988
    Brand :Stanley
    THB458.11
    1 Lot of 1
    Lot(s)
    8 → 14 mm - - Hook Bi-material 200 mm - Phosphate - -
    RS Stock No. 487-034
    Brand :RS PRO
    THB320.98
    Each
    Units
    13 mm Combination - - - 180 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 123-1805
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.073295
    Brand :Wera
    THB3,687.76
    Each
    Units
    1/2 in, 3/4 in, 7/16 in, 9/16 in - Joker Bi-Hexagon, Hexagon - 165 mm, 177 mm, 188 mm, 246 mm - - - -
    RS Stock No. 123-0523
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.004095
    Brand :Wera
    THB3,231.50
    Each
    Units
    1/2 in Fine Tooth Mechanism, Secure Socket Locking Function Zyklop Square Kraftform 271 (8797C) mm, 281 (8006C) mm - - - -
    RS Stock No. 495-401
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.003600
    Brand :Wera
    THB2,414.38
    Each
    Units
    1/2 in Swivelling Ratchet Head Zyklop Square Multicomponent Kraftform 277 mm - - - Chrome Vanadium Steel
    RS Stock No. 510-6399
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9124
    Brand :Gear Wrench
    THB1,617.89
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    Units
    24 mm Combination - - - 333 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 381-4414
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.4-87-989
    Brand :Stanley
    THB618.88
    1 Lot of 1
    Lot(s)
    13 → 19 mm - - Hook Bi-material 230 mm - Phosphate - -
    RS Stock No. 910-2899
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.467S.8SLS
    Brand :Facom
    THB899.93
    Each
    Units
    8 mm Reversible - Hexagon Ergonomic 90 mm - Satin Chrome Yes -
    RS Stock No. 123-0464
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.003660
    Brand :Wera
    THB1,469.16
    Each
    Units
    1/4 in Fine Tooth Mechanism, Forward & Reverse Drive Switch Zyklop Mini 2 Bi-Hexagon Ergonomic, Kraftform 107 mm - - - Steel
    RS Stock No. 322-4041
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.25.0020
    Brand :Multi Contact
    THB1,091.38
    Each
    Units
    12 mm - - - - 180 mm - - - -
    RS Stock No. 382-9488
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9117D
    Brand :Gear Wrench
    THB1,595.03
    Each
    Units
    17 mm Combination - - - 225 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 910-2880
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.467.27SLS
    Brand :Facom
    THB3,185.46
    Each
    Units
    27 mm Reversible - Hexagon Ergonomic 356.6 mm - Satin Chrome Yes -
    RS Stock No. 510-6355
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9120
    Brand :Gear Wrench
    THB1,447.89
    Each
    Units
    20 mm Combination - - - 291 mm - Nickel Chrome Plated - -
    RS Stock No. 382-9444
    หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9113D
    Brand :Gear Wrench
    THB1,264.21
    Each
    Units
    13 mm Combination - - - 178 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 487-038
    Brand :RS PRO
    THB403.20
    Each
    Units
    17 mm Combination - - - 233 mm - Chrome - Chrome Vanadium Steel
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