Spanners

Spanners are one of the most common hand tools found in any tool bag, box or kit and are used for fastening and loosening nuts or bolt heads with a hexagonal shape. They are typically made from hardened chrome vanadium steel or beryllium copper, and the most common types can comprise of a ring-style spanner on one end and an open jaw spanner on the other (a combination spanner), or two open jaw ends (an open-ended spanner).

The ring end recess, if present, is generally a six-point or twelve-point opening and sometimes offers a ratchet mechanism that helps apply maximum force with minimal user effort. This will most likely match the size of the open jaw end, but always check each tool. The open jaw is typically offset by 15 degrees to allow for a greater freedom of movement during operation, which also allows a higher torque force to be applied to help turn the chosen fastening.

Spanners are available in a variety of metric (mm) and imperial (in) sizes to allow for greater functionality across a wider range of applications. Our range includes products from leading brands such as Bahco, Facom, Ega-Master, Stanley, Wera & RS PRO.

How do spanners work?

In the case of open jaw spanners, these tools work by holding the opposite sides of a nut or bolt to channel the physical movement of the user, applying torque force to the fastening so that it can be turned. The same rules apply to ring-style spanners, the only difference being that the ring fully encases the fastening rather than applying force to opposite sides. Depending on the material they are made from, spanners can often withstand large amounts of torque being applied to stubborn fasteners.

Type of spanners

  • C Spanners - Also known as hook spanners, these are high-quality tools designed to loosen retaining rings and adjusting chains. View our range of C Spanners here.
  • Combination Spanners - A combination spanner will have the open jaw spanner on one end and the ring-style spanner on the other. View our range of Hook Spanners here.
  • Hook Spanners - These tools have one or several pins or 'hooks' that are designed to drive spanner-head screws, threaded collars and retainer rings, shafts, and so on.
  • Open Ended Spanners - As the name suggests, these tools have an open jaw at each end, however they often differ in size.
  • Ratchet Spanners - Ratchet spanners allow the angle of the tool to be adjusted by the user without removing it from the fastening. Also known as socket wrenches: view our range in our socket wrenches section.
  • Ring Spanners - Ring-style spanners have enclosed openings to grip the complete fastening rather than just opposite sides. Double ended ring spanners often have offset handles to improve access to nuts and bolts.

Who uses spanners?

Spanners are used across many industries, including:

  • Mechanics
  • Electricians
  • Network Engineers
  • DIY Enthusiasts

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Viewing 1 - 20 of 46 products
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Description Price Spanner Type Imperial Size Imperial or Metric Metric Size Overall Length VDE/1000V Approved Double Ended Material Height Safe Offset Finish Non Sparking Size
RS Stock No. 123-0464
Mfr. Part No.003660
BrandWera
SGD70.12
Each
units
Ratchet Spanner 1/4in Imperial - 107 mm - Yes Steel - - - - 1/4 in
RS Stock No. 123-1805
Mfr. Part No.073295
BrandWera
SGD184.78
Each
units
- - - - 165 mm, 177 mm, 188 mm, 246 mm - - - - - - - 1/2 in, 3/4 in, 7/16 in, 9/16 in
RS Stock No. 495-401
Mfr. Part No.003600
BrandWera
SGD139.03
Each
units
- - - - 277 mm - - Chrome Vanadium Steel - - - - 1/2 in
RS Stock No. 774-6712
Mfr. Part No.073270
BrandWera
SGD33.58
Each
units
Combination Ratchet Spanner - Metric 10mm 159 mm - Yes Chrome Molybdenum Steel - - Nickel Chrome Plated - 10 mm
RS Stock No. 812-6226
Mfr. Part No.003765
BrandWera
SGD55.05
Each
units
Open Ended Spanner - Metric 17 mm, 19mm 235 mm - Yes Chrome Molybdenum Steel - - Chrome - 17 x 19 mm
RS Stock No. 705-4821
Mfr. Part No.003695
BrandWera
SGD47.01
Each
units
- - - - 341 mm - - Steel - - - - 1/2 in
RS Stock No. 788-7087
Mfr. Part No.073283
BrandWera
SGD40.88
Each
units
Combination Ratchet Spanner 1/2in Imperial - 177 mm - Yes Chrome Alloy Steel - - Nickel Chrome Plated - 1/2 in
RS Stock No. 123-0523
Mfr. Part No.004095
BrandWera
SGD129.94
Each
units
- - - - 271 (8797C) mm, 281 (8006C) mm - - - - - - - 1/2 in
RS Stock No. 788-7056
Mfr. Part No.073268
BrandWera
SGD33.07
Each
units
Combination Ratchet Spanner - Metric 8mm 144 mm - Yes Chrome Alloy Steel - - Nickel Chrome Plated - 8 mm
RS Stock No. 812-6214
Mfr. Part No.003760
BrandWera
SGD37.90
Each
units
Open Ended Spanner - Metric 10 mm, 13mm 167 mm - Yes Chrome Molybdenum Steel - - Chrome - 10 x 13 mm
RS Stock No. 127-1194
Mfr. Part No.020071
BrandWera
SGD79.79
Each
units
Combination Ratchet Spanner - Metric 16mm 213 mm - Yes - - - - - 16 mm
RS Stock No. 123-0485
Mfr. Part No.003780
BrandWera
SGD112.65
Each
units
- - - - 281 mm - - - - - - - 1/2 in
RS Stock No. 788-7093
Mfr. Part No.073286
BrandWera
SGD59.70
Each
units
Combination Ratchet Spanner 11/16in Imperial - 235 mm - Yes Chrome Alloy Steel - - Nickel Chrome Plated - 11/16 in
RS Stock No. 201-2193
Mfr. Part No.05020263001
BrandWera
SGD149.25
Each
units
- - - - - No - - No - - Yes 27 x 32 mm
RS Stock No. 201-2194
Mfr. Part No.05020264001
BrandWera
SGD151.14
Each
units
- - - - - No - - No - - Yes 30 x 32 mm
RS Stock No. 788-7097
Mfr. Part No.073287
BrandWera
SGD58.81
Each
units
Combination Ratchet Spanner 3/4in Imperial - 246 mm - Yes Chrome Alloy Steel - - Nickel Chrome Plated - 3/4 in
RS Stock No. 788-7084
Mfr. Part No.073282
BrandWera
SGD44.34
Each
units
Combination Ratchet Spanner 7/16in Imperial - 165 mm - Yes Chrome Alloy Steel - - Nickel Chrome Plated - 7/16 in
RS Stock No. 788-7053
Mfr. Part No.073272
BrandWera
SGD36.44
Each
units
Combination Ratchet Spanner - Metric 12mm 171 mm - Yes Chrome Alloy Steel - - Nickel Chrome Plated - 12 mm
RS Stock No. 127-1184
Mfr. Part No.020064
BrandWera
SGD60.39
Each
units
Combination Ratchet Spanner - Metric 8mm 144 mm - Yes - - - - - 8 mm
RS Stock No. 201-2190
Mfr. Part No.05020260001
BrandWera
SGD95.67
Each
units
- - - - - No - - No - - Yes 20 x 22 mm