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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    Description Price Size Special Features Model Shape Handle Type Overall Length VDE/1000V Approved Finish Height Safe Material
    RS Stock No. 487-038
    BrandRS PRO
    MYR51.83
    Each
    units
    17 mm Combination - - - 233 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 495-401
    Mfr. Part No.003600
    BrandWera
    MYR342.68
    Each
    units
    1/2 in Swivelling Ratchet Head Zyklop Square Multicomponent Kraftform 277 mm - - - Chrome Vanadium Steel
    RS Stock No. 487-056
    BrandRS PRO
    MYR44.69
    Each
    units
    10 mm Combination - - - 160 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 123-0464
    Mfr. Part No.003660
    BrandWera
    MYR202.68
    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. 487-034
    BrandRS PRO
    MYR51.30
    Each
    units
    13 mm Combination - - - 180 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 181-783
    BrandRS PRO
    MYR37.06
    Each
    units
    7 x 8 mm Double Ended Ring - Hexagon - - - Black - Chrome Vanadium Steel
    RS Stock No. 382-9400
    Mfr. Part No.9110D
    MYR114.54
    Each
    units
    10 mm Combination - - - 159 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 768-6884
    Mfr. Part No.9215D
    MYR163.87
    Each
    units
    17 x 19 mm Double Ended - Bi-Hexagon - 230 mm - Chrome - -
    RS Stock No. 382-9387
    Mfr. Part No.9108D
    MYR91.16
    Each
    units
    8 mm Combination - - - 140 mm - Nickel Chrome Plated - -
    RS Stock No. 382-9444
    Mfr. Part No.9113D
    MYR133.49
    Each
    units
    13 mm Combination - - - 178 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 510-6377
    Mfr. Part No.9121
    MYR198.10
    Each
    units
    21 mm Combination - - - 291 mm - Nickel Chrome Plated - -
    RS Stock No. 876-6402
    Mfr. Part No.1RM-7
    BrandBahco
    MYR105.33
    Each
    units
    7 mm Bigger and bi-directional size marking for easy identification, Switch for Quick change of right and left direction, 5º Action Angle, 12 Points Dynamic-Drive Profile Provides Longer Life for Screws and Nuts - - Straight 140 mm - Chrome - Alloy Steel
    RS Stock No. 510-6399
    Mfr. Part No.9124
    MYR180.22
    Each
    units
    24 mm Combination - - - 333 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 910-2843
    Mfr. Part No.467.13SLS
    BrandFacom
    MYR153.69
    Each
    units
    13 mm Reversible 467.13SLS Hexagon Ergonomic 178 mm - Satin Chrome Yes -
    RS Stock No. 667-3424
    Mfr. Part No.85214
    MYR413.87
    Each
    units
    20, 21, 22, 24 mm Double Ended - - - 290 mm - Chrome - -
    RS Stock No. 487-264
    BrandRS PRO
    MYR68.21
    Each
    units
    13 mm Pivot Head; Flexible - - - 180 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 382-9488
    Mfr. Part No.9117D
    MYR147.47
    Each
    units
    17 mm Combination - - - 225 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 876-4913
    Mfr. Part No.64C.S1
    BrandFacom
    MYR145.11
    Each
    units
    8 x 10 mm, 12 x 13 mm - - - - 150 mm - Satin Chrome - -
    RS Stock No. 123-0523
    Mfr. Part No.004095
    BrandWera
    MYR445.62
    Each
    units
    1/2 in Fine Tooth Mechanism, Secure Socket Locking Function Zyklop Square Kraftform 271 (8797C) mm, 281 (8006C) mm - - - -
    RS Stock No. 382-9438
    Mfr. Part No.9112
    MYR138.04
    Each
    units
    12 mm Combination - - - 172 mm - Nickel Chrome Plated - -
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