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庫存編號 774-6725
    製造零件編號073277
    BrandWera
    HK$241.40
    單位
    17 mm Combination, Double Ended Joker Hexagon - 224 mm - Nickel Chrome Plated - Chrome Molybdenum Steel
    RS庫存編號 510-6399
    製造零件編號9124
    HK$369.00
    單位
    24 mm Combination - - - 333 mm - Nickel Chrome Plated - Hardened Steel
    RS庫存編號 457-1938
    製造零件編號MS41RS-17
    BrandSibille
    HK$473.48
    單位
    17 mm Non Reversible; Ratchet Ring - Hexagon Insulated - Yes - - -
    RS庫存編號 487-270
    BrandRS PRO
    HK$131.16
    單位
    24 mm Combination - - - 325 mm - Chrome - Chrome Vanadium Steel
    RS庫存編號 876-6391
    製造零件編號1RM-27
    BrandBahco
    HK$437.72
    單位
    27 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 359 mm - Chrome - Alloy Steel
    RS庫存編號 705-4821
    製造零件編號003695
    BrandWera
    HK$228.69
    單位
    1/2 in - Koloss - Extension 341 mm - - - Steel
    RS庫存編號 669-8142
    製造零件編號467BF.8
    BrandFacom
    HK$162.82
    單位
    8 mm Combination; Hinged 467BF.8 - - 127 mm - Satin Chrome - -
    RS庫存編號 667-3415
    製造零件編號85212
    HK$257.93
    單位
    16, 17, 18, 19 mm Double Ended - - - 230 mm - Chrome - -
    RS庫存編號 382-9488
    製造零件編號9117D
    HK$217.33
    單位
    17 mm Combination - - - 225 mm - Nickel Chrome Plated - Hardened Steel
    RS庫存編號 457-1922
    製造零件編號MS41RS-13
    BrandSibille
    HK$408.72
    單位
    13 mm Non Reversible; Ratchet Ring - Hexagon Insulated - Yes - - -
    RS庫存編號 774-6712
    製造零件編號073270
    BrandWera
    HK$156.81
    單位
    10 mm Combination, Double Ended Joker Hexagon - 159 mm - Nickel Chrome Plated - Chrome Molybdenum Steel
    RS庫存編號 322-4035
    製造零件編號25.0022
    HK$169.00
    單位
    8 mm - - - - 120 mm - - - -
    RS庫存編號 181-799
    BrandRS PRO
    HK$74.58
    單位
    9 x 10 mm Double Ended Ring - Hexagon - - - Black - Chrome Vanadium Steel
    RS庫存編號 382-9501
    製造零件編號9119
    HK$293.71
    單位
    19 mm Combination - - - 248 mm - Nickel Chrome Plated - Hardened Steel
    RS庫存編號 774-6728
    製造零件編號073279
    BrandWera
    HK$240.93
    單位
    19 mm Combination, Double Ended Joker Hexagon - 246 mm - Nickel Chrome Plated - Chrome Molybdenum Steel
    RS庫存編號 495-401
    製造零件編號003600
    BrandWera
    HK$613.10
    單位
    1/2 in Swivelling Ratchet Head Zyklop Square Multicomponent Kraftform 277 mm - - - Chrome Vanadium Steel
    RS庫存編號 509-9544
    製造零件編號9912D
    HK$303.32
    單位
    12 mm Pivot Head; Flex Combination - Pivot Head - 172 mm - - - -
    RS庫存編號 181-783
    BrandRS PRO
    HK$66.96
    單位
    7 x 8 mm Double Ended Ring - Hexagon - - - Black - Chrome Vanadium Steel
    RS庫存編號 876-4913
    製造零件編號64C.S1
    BrandFacom
    HK$239.47
    單位
    8 x 10 mm, 12 x 13 mm - - - - 150 mm - Satin Chrome - -
    RS庫存編號 910-2903
    製造零件編號467S.10SLS
    BrandFacom
    HK$269.06
    單位
    10 mm Reversible - Hexagon Ergonomic 95 mm - Satin Chrome Yes -