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 293 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. 717-8933
Mfr. Part No.895M-41-46
BrandBahco
SGD80.18
Each
units
Open Ended Spanner - Metric 41 mm, 46mm 381 mm - Yes Alloy Steel - - Gunmetal - 41 x 46 mm
RS Stock No. 717-8942
Mfr. Part No.895M-46-50
BrandBahco
SGD84.33
Each
units
Open Ended Spanner - Metric 46 mm, 50mm 420 mm - Yes Alloy Steel - - Gunmetal - 46 x 50 mm
RS Stock No. 717-8939
Mfr. Part No.895M-36-41
BrandBahco
SGD47.71
Each
units
Open Ended Spanner - Metric 36 mm, 41mm 345 mm - Yes Alloy Steel - - Gunmetal - 36 x 41 mm
RS Stock No. 717-8602
Mfr. Part No.111Z-13/16
BrandBahco
SGD29.14
Each
units
Combination Spanner 13/16in Imperial - 250 mm - Yes Alloy Steel - - Chrome - 13/16 in
RS Stock No. 717-8945
Mfr. Part No.895M-50-55
BrandBahco
SGD84.53
Each
units
Open Ended Spanner - Metric 50 mm, 55mm 460 mm - Yes Alloy Steel - - Gunmetal - 50 x 55 mm
RS Stock No. 609-9466
Mfr. Part No.111M-7
BrandBahco
SGD13.28
Each
units
Combination Spanner - Metric 7mm 120 mm - Yes Alloy Steel - - Chrome - 7 mm
RS Stock No. 609-9242
Mfr. Part No.6M-20-22
BrandBahco
SGD18.71
Each
units
Open Ended Spanner - Metric 20 mm, 22mm 225 mm - Yes Alloy Steel - - Chrome - 20 x 22 mm
RS Stock No. 609-9416
Mfr. Part No.111M-13
BrandBahco
SGD15.28
Each
units
Combination Spanner - Metric 13mm 169 mm - Yes Alloy Steel - - Chrome - 13 mm
RS Stock No. 717-8927
Mfr. Part No.895M-30-36
BrandBahco
SGD42.92
Each
units
Open Ended Spanner - Metric 30 mm, 36mm 305 mm - Yes Alloy Steel - - Gunmetal - 30 x 36 mm
RS Stock No. 611-1550
Mfr. Part No.6M-5-5,5
BrandBahco
SGD7.70
Each
units
Open Ended Spanner - Metric 5 mm, 5.5mm 105 mm - Yes Alloy Steel - - Chrome - 5 x 5.5 mm
RS Stock No. 717-8901
Mfr. Part No.895M-19-22
BrandBahco
SGD12.92
Each
units
Open Ended Spanner - Metric 19 mm, 22mm 195 mm - Yes Alloy Steel - - Gunmetal - 19 x 22 mm
RS Stock No. 611-1588
Mfr. Part No.111M-10
BrandBahco
SGD13.64
Each
units
Combination Spanner - Metric 10mm 144 mm - Yes Alloy Steel - - Chrome - 10 mm
RS Stock No. 717-8591
Mfr. Part No.111Z-9/16
BrandBahco
SGD16.60
Each
units
Combination Spanner 9/16in Imperial - 177 mm - Yes Alloy Steel - - Chrome - 9/16 in
RS Stock No. 717-8100
Mfr. Part No.7444SG-M-36
BrandBahco
SGD101.58
Each
units
Slogging Spanner - Metric 36mm 205 mm - No Steel - - Steel Grey - 36 mm
RS Stock No. 717-8781
Mfr. Part No.1952Z-9/16
BrandBahco
SGD25.04
Each
units
Combination Spanner 9/16in Imperial - 185 mm - Yes Alloy Steel - - Chrome - 9/16 in
RS Stock No. 717-8923
Mfr. Part No.895M-30-32
BrandBahco
SGD32.05
Each
units
Open Ended Spanner - Metric 30 mm, 32mm 275 mm - Yes Alloy Steel - - Gunmetal - 30 x 32 mm
RS Stock No. 609-9450
Mfr. Part No.111M-17
BrandBahco
SGD20.80
Each
units
Combination Spanner - Metric 17mm 200 mm - Yes Alloy Steel - - Chrome - 17 mm
RS Stock No. 609-9769
Mfr. Part No.111M-24
BrandBahco
SGD32.27
Each
units
Combination Spanner - Metric 24mm 270 mm - Yes Alloy Steel - - Chrome - 24 mm
RS Stock No. 876-6385
Mfr. Part No.1RM-21
BrandBahco
SGD61.28
Each
units
Ratchet Spanner - Metric 21mm 290 mm - Yes Alloy Steel - - Chrome - 21 mm
RS Stock No. 717-8936
Mfr. Part No.895M-32-36
BrandBahco
SGD41.67
Each
units
Open Ended Spanner - Metric 32 mm, 36mm 307 mm - Yes Alloy Steel - - Gunmetal - 32 x 36 mm