Hex Keys & Sets

Hex keys or Allen keys as they are most commonly known are hand tools that are used to loosen or tighten fasteners and fixings with a 6-sided hexagonal shape. The hex key is most commonly shaped in the form of an 'L' and made from one continuous piece. Hex keys and their hexagonal fastenings were produced by the Allen Manufacturing Company that made them famous and coined the term 'Allen Keys' or 'Allen Wrenches'. Generally, they are made from steel, nickel, aluminium bronze and beryllium copper and are available in different variations, dependant on the application it is required for.

What are the different types of hex keys available?

Depending on your application, there are various types of hex keys that can be used. They are available in metric or imperial units and the most common types are:

  • L-shaped - The most common type of hex key that has the same size head on each end, allowing the key to be used in either orientation. The longer arm allows greater leverage and more torque, whereas the shorter arm allows better access into confined spaces with restricted access
  • T-handle - designed with a more comfortable, ergonomic handle so that it is easier to use a higher amount of torque on stubborn fasteners. Some T-shaped keys have a secondary hex key integrated into the handle, allowing easier access

  • ...
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    Description Price Number of Pieces Shape Short or Long Arm Material Finish VDE/1000V Approved Height Safe Imperial or Metric Hex Key Size Hex Key Type Priced to Clear
    RS Stock No. 542-3509
    BrandRS PRO
    £26.67
    Each
    Units
    15 L Long S2 Steel Chrome - - Metric 1.27 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm Ball End -
    RS Stock No. 537-732
    BrandRS PRO
    £5.01
    1 Set
    Set(s)
    10 L Short Chrome Vanadium Steel Blackened - - Imperial 1.5mm Hexagon -
    RS Stock No. 542-3515
    BrandRS PRO
    £12.65
    Each
    Units
    9 L - S2 Steel Mirror - - Metric 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm Ball End -
    RS Stock No. 541-7324
    BrandRS PRO
    £42.91
    Each
    Units
    33 L Long - - - - - 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 1/16 in, 1/4 in, 1/8 in, 3/16 in, 3/32 in, 5/16 in, 5/32 in, 5/64 in, 7/32 in, 7/64 in, 9/64 in Ball End, Hex Wrench -
    RS Stock No. 537-782
    BrandRS PRO
    £9.76
    1 Set
    Set(s)
    10 L Long Chrome Vanadium Steel Blackened - - Imperial 1/16 in, 1/4 in, 1/8 in, 3/16 in, 3/32 in, 3/8 in, 5/16 in, 5/32 in, 5/64 in, 7/32 in Ball End -
    RS Stock No. 537-811
    BrandRS PRO
    £32.34
    1 Set
    Set(s)
    10 T - Chrome Vanadium Steel Blackened - - Metric 2.5mm Ball End -
    RS Stock No. 833-5913
    BrandRS PRO
    £38.91
    Each
    Units
    15 L, T Long Steel Polished - - Metric 9mm Ball End, Hex Screwdriver -
    RS Stock No. 449-9606
    BrandRS PRO
    £11.97
    1 Set
    Set(s)
    9 L - Chrome Vanadium Steel Blackened - - Metric 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm Ball End -
    RS Stock No. 537-748
    BrandRS PRO
    £5.21
    1 Set
    Set(s)
    10 L Short Chrome Vanadium Steel Blackened - - Metric 1.5mm Hexagon -
    RS Stock No. 450-1002
    BrandRS PRO
    £4.39
    Each
    Units
    8 L - Chrome Vanadium Steel Blackened - - Metric 0.7 mm, 0.9 mm, 1.27 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm Hexagon -
    RS Stock No. 449-9612
    BrandRS PRO
    £21.29
    1 Set
    Set(s)
    12 L Long Chrome Vanadium Steel Blackened - - Imperial 0.5 in, 1/16 in, 1/4 in, 1/8 in, 3/16 in, 3/32 in, 5/16 in, 5/32 in, 5/64 in, 7/32 in, 7/64 in, 9/64 in Ball End -
    RS Stock No. 734-882
    BrandRS PRO
    £0.118
    Each (In a Pack of 5)
    Units
    1 L Long Chrome Vanadium Steel Blackened - - Metric 2mm Hexagon -
    RS Stock No. 735-100
    BrandRS PRO
    £1.85
    Each
    Units
    1 L Long Chrome Vanadium Steel Blackened - - Metric 5mm Ball End -
    RS Stock No. 537-805
    BrandRS PRO
    £25.03
    1 Set
    Set(s)
    10 T - Chrome Vanadium Steel Blackened - - Imperial 1/4in Ball End -
    RS Stock No. 734-911
    BrandRS PRO
    £0.378
    Each (In a Pack of 5)
    Units
    1 L Long Chrome Vanadium Steel Blackened - - Metric 4mm Hexagon -
    RS Stock No. 537-827
    BrandRS PRO
    £19.67
    Each
    Units
    25 L Long Chrome Vanadium Steel Blackened - - Metric 1.5mm Hexagon -
    RS Stock No. 734-905
    BrandRS PRO
    £0.276
    Each (In a Pack of 5)
    Units
    1 L Long Chrome Vanadium Steel Blackened - - Metric 3mm Hexagon -
    RS Stock No. 734-876
    BrandRS PRO
    £0.142
    Each (In a Pack of 5)
    Units
    1 L Long Chrome Vanadium Steel Blackened - - Metric 1.5mm Hexagon -
    RS Stock No. 199-5202
    BrandRS PRO
    £34.69
    1 Set
    Set(s)
    15 L Short Chrome Nickel Alloy Steel - - - Metric 0.7 mm, 0.9 mm, 1.3 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 9 mm, 10 mm, 17 mm Hexagon -
    RS Stock No. 247-9997
    BrandRS PRO
    £44.60
    1 Set
    Set(s)
    8 T Long Chrome Nickel Alloy Steel - - - Metric 2 in, 2.5 in, 3 in, 4 in, 5 in, 6 in, 8 in, 10 in Hexagon -
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