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. 487-056
    BrandRS PRO
    $18.99
    Each
    units
    10 mm Combination - - - 160 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 123-1805
    Mfr. Part No.073295
    BrandWera
    $154.13
    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. 487-034
    BrandRS PRO
    $21.09
    Each
    units
    13 mm Combination - - - 180 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 382-9444
    Mfr. Part No.9113D
    $28.30
    Each
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    13 mm Combination - - - 178 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 876-6446
    Mfr. Part No.1RZ-5/8
    BrandBahco
    $61.99
    Each
    units
    5/8 in 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 208 mm - Chrome - Alloy Steel
    RS Stock No. 768-6799
    Mfr. Part No.85913
    BrandGearWrench
    $56.19
    Each
    units
    13 mm Double Ended - Hexagon - 287 mm - Chrome - -
    RS Stock No. 510-6349
    Mfr. Part No.9127D
    $109.56
    Each
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    27 mm Combination - - - 359 mm - Nickel Chrome Plated - -
    RS Stock No. 737-0126
    Mfr. Part No.41561620
    BrandSTAHLWILLE
    $51.28
    Each
    units
    1/4 x 5/16 in Double Ended Ring - Bi-Hexagon - 109 mm - Chrome - Solid Steel
    RS Stock No. 487-270
    BrandRS PRO
    $30.91
    Each
    units
    24 mm Combination - - - 325 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 382-9400
    Mfr. Part No.9110D
    $38.64
    Each
    units
    10 mm Combination - - - 159 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 876-6402
    Mfr. Part No.1RM-7
    BrandBahco
    $39.60
    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. 509-9493
    Mfr. Part No.9908D
    $72.63
    Each
    units
    8 mm Pivot Head; Flex Combination - Pivot Head - 140 mm - - - -
    RS Stock No. 668-5777
    BrandRS PRO
    $45.21
    Each
    units
    1/4 in Mini Head; Reversible - Square - - - Black Chrome Plated - Chrome Vanadium Steel
    RS Stock No. 768-6878
    Mfr. Part No.9212D
    BrandGearWrench
    $46.05
    Each
    units
    12 x 13 mm Double Ended - Bi-Hexagon - 170 mm - Chrome - -
    RS Stock No. 177-999
    Mfr. Part No.FR28SWEU
    $63.10
    Each
    units
    1 in Adjustable - - Rubberized Comfort Grip 203 mm - - - -
    RS Stock No. 457-1916
    Mfr. Part No.MS41RS-10
    BrandSibille
    $89.43
    Each
    units
    10 mm Non Reversible; Ratchet Ring - Hexagon Insulated - Yes - - -
    RS Stock No. 774-6712
    Mfr. Part No.073270
    BrandWera
    $38.64
    Each
    units
    10 mm Combination, Double Ended Joker Hexagon - 159 mm - Nickel Chrome Plated - Chrome Molybdenum Steel
    RS Stock No. 510-6355
    Mfr. Part No.9120
    $89.35
    Each
    units
    20 mm Combination - - - 291 mm - Nickel Chrome Plated - -
    RS Stock No. 487-220
    BrandRS PRO
    $24.84
    Each
    units
    10 mm Pivot Head; Flexible - - - 160 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 705-4821
    Mfr. Part No.003695
    BrandWera
    $65.13
    Each
    units
    1/2 in - Koloss - Extension 341 mm - - - Steel
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