Ratchet Spanners

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. 722-7164
    Mfr. Part No.R.360
    BrandFacom
    £53.58
    Each
    Units
    - - - - Ratchet 120 mm - Satin Chrome - Chrome Vanadium Steel
    RS Stock No. 774-6712
    Mfr. Part No.073270
    BrandWera
    £15.19
    Each
    Units
    10 mm Combination, Double Ended Joker Hexagon - 159 mm - Nickel Chrome Plated - Chrome Molybdenum Steel
    RS Stock No. 876-6402
    Mfr. Part No.1RM-7
    BrandBahco
    £15.89
    Each
    Units
    7 mm 12 Points Dynamic-Drive Profile Provides Longer Life for Screws and Nuts, 5º Action Angle, Bigger and bi-directional size marking for easy identification, Switch for Quick change of right and left direction - - Straight 140 mm - Chrome - Alloy Steel
    RS Stock No. 382-9501
    Mfr. Part No.9119
    £24.10
    Each
    Units
    19 mm Combination - - - 248 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 509-9550
    Mfr. Part No.9913D
    £26.70
    Each
    Units
    13 mm Pivot Head; Flex Combination - Pivot Head - 178 mm - Polished - Hardened Steel
    RS Stock No. 382-9387
    Mfr. Part No.9108D
    £15.76
    Each
    Units
    8 mm Combination - - - 140 mm - Nickel Chrome Plated - -
    RS Stock No. 381-4420
    Mfr. Part No.4-87-990
    BrandStanley
    £15.86
    1 Lot of 1
    Lot(s)
    17 → 24 mm - - Hook Bi-material 265 mm - Phosphate - -
    RS Stock No. 495-401
    Mfr. Part No.003600
    BrandWera
    £61.58
    Each
    Units
    1/2 in Swivelling Ratchet Head Zyklop Square Multicomponent Kraftform 277 mm - - - Chrome Vanadium Steel
    RS Stock No. 737-0126
    Mfr. Part No.41561620
    BrandSTAHLWILLE
    £18.81
    Each
    Units
    1/4 x 5/16 in Double Ended Ring - Bi-Hexagon - 109 mm - Chrome - Solid Steel
    RS Stock No. 509-9522
    Mfr. Part No.9910D
    £24.15
    Each
    Units
    10 mm Pivot Head; Flex Combination - Pivot Head - 159 mm - Polished - Hardened Steel
    RS Stock No. 910-2896
    Mfr. Part No.467S.7SLS
    BrandFacom
    £23.31
    Each
    Units
    7 mm Reversible - Hexagon Ergonomic 90 mm - Satin Chrome Yes -
    RS Stock No. 510-6406
    Mfr. Part No.9130D
    £40.90
    Each
    Units
    30 mm Combination - - - 402 mm - Nickel Chrome Plated - -
    RS Stock No. 322-4035
    Mfr. Part No.25.0022
    £18.16
    Each
    Units
    8 mm - - - - 120 mm - - - -
    RS Stock No. 829-2838
    Mfr. Part No.467R.10
    BrandFacom
    £17.95
    Each
    Units
    10 mm 2-in-1 Open End, Double Ratchet, Durable Open End, Fast Work, Secure Work, Versatile 467R.10 - - 158 mm - Chrome - Chrome Vanadium Steel
    RS Stock No. 322-4041
    Mfr. Part No.25.0020
    £22.08
    Each
    Units
    12 mm - - - - 180 mm - - - -
    RS Stock No. 667-3424
    Mfr. Part No.85214
    £59.90
    Each
    Units
    20, 21, 22, 24 mm Double Ended - - - 290 mm - Chrome - -
    RS Stock No. 876-6408
    Mfr. Part No.1RM-6
    BrandBahco
    £15.89
    Each
    Units
    6 mm 12 Points Dynamic-Drive Profile Provides Longer Life for Screws and Nuts, 5º Action Angle, Bigger and bi-directional size marking for easy identification, Switch for Quick change of right and left direction - - Straight 128 mm - Chrome - Alloy Steel
    RS Stock No. 742-8395
    Mfr. Part No.RL.161
    BrandFacom
    £35.78
    Each
    Units
    1/4 in Lightweight - Square Ratchet 121 mm - - - -
    RS Stock No. 510-6399
    Mfr. Part No.9124
    £29.50
    Each
    Units
    24 mm Combination - - - 333 mm - Nickel Chrome Plated - Hardened Steel
    RS Stock No. 876-6398
    Mfr. Part No.1RM-24
    BrandBahco
    £32.11
    Each
    Units
    24 mm 12 Points Dynamic-Drive Profile Provides Longer Life for Screws and Nuts, 5º Action Angle, Bigger and bi-directional size marking for easy identification, Switch for Quick change of right and left direction - - Straight 323 mm - Chrome - Alloy Steel
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