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 257 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. 247-9717
Mfr. Part No.41.8
BrandFacom
MYR60.62
Each
units
Combination Spanner - Metric 8mm 127 mm - Yes Chrome Vanadium Steel - - Chrome - 8 mm
RS Stock No. 910-2843
Mfr. Part No.467.13SLS
BrandFacom
MYR163.24
Each
units
Combination Ratchet Spanner - Metric 13mm 178 mm - Yes - Yes - Satin Chrome - 13 mm
RS Stock No. 876-4913
Mfr. Part No.64C.S1
BrandFacom
MYR176.28
Each
units
Ratchet Spanner - Metric 8 mm, 10 mm, 12 mm, 13mm 150 mm - Yes - - - Satin Chrome - 8 x 10 x 12 x 13 mm
RS Stock No. 476-107
Mfr. Part No.440.10
BrandFacom
MYR38.36
Each
units
Combination Spanner - Metric 10mm 145 mm - Yes Alloy Steel - - Satin Chrome - 10 mm
RS Stock No. 476-034
Mfr. Part No.440.7
BrandFacom
MYR37.20
Each
units
Combination Spanner - Metric 7mm 122 mm - Yes - - - Satin Chrome - 7 mm
RS Stock No. 910-2732
Mfr. Part No.440.18SLS
BrandFacom
MYR103.82
Each
units
Combination Spanner - Metric 18mm 208 mm - Yes - Yes - Satin Chrome - 18 mm
RS Stock No. 476-094
Mfr. Part No.440.19
BrandFacom
MYR63.26
Each
units
Combination Spanner - Metric 19mm 216 mm - Yes - - - Satin Chrome - 19 mm
RS Stock No. 476-040
Mfr. Part No.440.5.5H
BrandFacom
MYR38.29
Each
units
Combination Spanner - Metric 5.5mm 115 mm - Yes - - - Satin Chrome - 5.5 mm
RS Stock No. 476-101
Mfr. Part No.440.11
BrandFacom
MYR39.70
Each
units
Combination Spanner - Metric 11mm 155 mm - Yes - - - Satin Chrome - 11 mm
RS Stock No. 476-135
Mfr. Part No.440.13
BrandFacom
MYR51.41
Each
units
Combination Spanner - Metric 13mm 170 mm - Yes Alloy Steel - - Satin Chrome - 13 mm
RS Stock No. 475-980
Mfr. Part No.440.6
BrandFacom
MYR37.76
Each
units
Combination Spanner - Metric 6mm 115 mm - Yes - - - Satin Chrome - 6 mm
RS Stock No. 476-123
Mfr. Part No.440.17
BrandFacom
MYR57.28
Each
units
Combination Spanner - Metric 17mm 202 mm - Yes - - - Satin Chrome - 17 mm
RS Stock No. 247-9773
Mfr. Part No.41.15
BrandFacom
MYR75.78
Each
units
Combination Spanner - Metric 15mm 200 mm - Yes Chrome Vanadium Steel - - Chrome - 15 mm
RS Stock No. 247-9802
Mfr. Part No.41.17
BrandFacom
MYR96.55
Each
units
- - - - 224 mm - - Chrome Vanadium Steel - - Chrome - 17 mm
RS Stock No. 247-9751
Mfr. Part No.41.13
BrandFacom
MYR66.69
Each
units
- - - - 180 mm - - Chrome Vanadium Steel - - Chrome - 13 mm
RS Stock No. 835-3113
Mfr. Part No.440.3/8
BrandFacom
MYR34.35
Each
units
Combination Spanner 3/8in Imperial - 145 mm - Yes - - - Satin Chrome - 3/8 in
RS Stock No. 742-8395
Mfr. Part No.RL.161PB
BrandFacom
MYR169.24
Each
units
- - - - 121 mm - - - - - - - 1/4 in
RS Stock No. 476-038
Mfr. Part No.440.9
BrandFacom
MYR37.20
Each
units
Combination Spanner - Metric 9mm 138 mm - Yes - - - Satin Chrome - 9 mm
RS Stock No. 247-9767
Mfr. Part No.41.14
BrandFacom
MYR68.83
Each
units
Combination Spanner - Metric 14mm 180 mm - Yes Chrome Vanadium Steel - - Chrome - 14 mm
RS Stock No. 247-9739
Mfr. Part No.41.10
BrandFacom
MYR59.61
Each
units
- - - - 142 mm - - Chrome Vanadium Steel - - Chrome - 10 mm