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. 509-9566
    Mfr. Part No.9914D
    $58.49
    Each
    units
    14 mm Pivot Head; Flex Combination - Pivot Head - 191 mm - - - -
    RS Stock No. 382-9472
    Mfr. Part No.9116D
    $64.35
    Each
    units
    16 mm Combination - - - 208 mm - Nickel Chrome Plated - -
    RS Stock No. 668-5786
    BrandRS PRO
    $41.01
    Each
    units
    3/8 in Mini Head; Reversible - Square - - - Black Chrome Plated - Chrome Vanadium Steel
    RS Stock No. 509-9588
    Mfr. Part No.9916D
    $43.54
    Each
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    16 mm Pivot Head; Flex Combination - Pivot Head - 208 mm - - - -
    RS Stock No. 737-0101
    Mfr. Part No.41131011
    BrandSTAHLWILLE
    $68.40
    Each
    units
    10 x 11 mm Double Ended Ring; Straight - Bi-Hexagon - 170 mm - Chrome - -
    RS Stock No. 181-783
    BrandRS PRO
    $18.18
    Each
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    7 x 8 mm Double Ended Ring - Hexagon - - - Black - Chrome Vanadium Steel
    RS Stock No. 487-028
    BrandRS PRO
    $14.62
    Each
    units
    11 mm Combination - - - 168 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 487-185
    BrandRS PRO
    $13.08
    Each
    units
    11 mm Pivot Head; Flexible - - - 168 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 509-9550
    Mfr. Part No.9913D
    $38.08
    Each
    units
    13 mm Pivot Head; Flex Combination - Pivot Head - 178 mm - Polished - Hardened Steel
    RS Stock No. 487-038
    BrandRS PRO
    $24.55
    Each
    units
    17 mm Combination - - - 233 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 876-6411
    Mfr. Part No.1RM-8
    BrandBahco
    $36.83
    Each
    units
    8 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. 123-0523
    Mfr. Part No.004095
    BrandWera
    $122.44
    Each
    units
    1/2 in Fine Tooth Mechanism, Secure Socket Locking Function Zyklop Square Kraftform 271 (8797C) mm, 281 (8006C) mm - - - -
    RS Stock No. 876-6492
    Mfr. Part No.41RM-12
    BrandBahco
    $35.25
    Each
    units
    12 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 148 mm - Chrome - Alloy Steel
    RS Stock No. 876-6496
    Mfr. Part No.41RM-13
    BrandBahco
    $48.33
    Each
    units
    13 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 154 mm - Chrome - Alloy Steel
    RS Stock No. 487-208
    BrandRS PRO
    $15.68
    Each
    units
    8 mm Combination - - - 136 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 876-6379
    Mfr. Part No.1RM-17
    BrandBahco
    $48.66
    Each
    units
    17 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 226 mm - Chrome - Alloy Steel
    RS Stock No. 910-2912
    Mfr. Part No.467S.14SLS
    BrandFacom
    $47.05
    Each
    units
    14 mm Combination; Reversible SLS Bi-Hexagon Ergonomic 115 mm - Satin Chrome Yes -
    RS Stock No. 778-2291
    Mfr. Part No.58250065
    BrandSTAHLWILLE
    $368.24
    Each
    units
    3/4 in Heavy Duty - Square - - - - - -
    RS Stock No. 774-6725
    Mfr. Part No.073277
    BrandWera
    $52.21
    Each
    units
    17 mm Combination, Double Ended Joker Hexagon - 224 mm - Nickel Chrome Plated - Chrome Molybdenum Steel
    RS Stock No. 510-6399
    Mfr. Part No.9124
    $81.01
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    units
    24 mm Combination - - - 333 mm - Nickel Chrome Plated - Hardened Steel
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