Ratchet Spanners

A Ratchet spanner is a spanner that has an open ended ring head or flare to turn a fastener in one direction but not the other direction whilst remaining fitted to the fastener head.

Ratchet spanners are useful because they don't need to be removed from the head and relocated every time the limit of the turning arc is reached. They are turned back and forth repeatedly but the nut is only turned in one direction. Some ratchet spanners have arrows etched into the surface of the tool to indicate which direction the torque is. Ratchet spanners can have two ratcheted heads or one ratchet and one non-ratcheted head. The non-ratcheted head can start or finish the task when the fastener is at its tightest and the ratchet head can do the rest.

Ratchet Head Types
•Ring Head: The most common head type is the ring head they have a 12 point profile made from a plastic component which twists in one direction within the spanner head housing.


•Reversible: Some spanners have a reversible head which accommodate two sizes, one on each face of the spanner. A lever has to be moved across to change the direction of the ratchet mechanism.


•Flare Nut Spanner: Flare nut spanners can be ratcheted too


•Open Ended Spanner: These can also have a ratchet mechanism although instead of the ratcheting mechanism being on the inside of the spanner, a spring loaded pawl a spring sticks out of one face of the profile and the fastener head acts as the gear.


•Ratchet Open ended: These have a modified profile which catches on the fastener in one direction but not the other. Turning the spanner over changes the direction of torque.

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Description Price Size Special Features Model Shape Handle Type Overall Length VDE/1000V Approved Finish Height Safe Material
RS Stock No. 487-056
BrandRS PRO
$18.61
Each
units
10 mm Combination - - - 160 mm - Chrome - Chrome Vanadium Steel
RS Stock No. 123-1805
Mfr. Part No.05073295001
BrandWera
$151.11
Each
units
1/2 in, 3/4 in, 7/16 in, 9/16 in Double Open Ended Joker Bi-Hexagon, Hexagon - 165 mm, 177 mm, 188 mm, 246 mm - - - -
RS Stock No. 382-9444
Mfr. Part No.9113D
$39.38
Each
units
13 mm Combination - - - 178 mm - Nickel Chrome Plated - Hardened Steel
RS Stock No. 876-6446
Mfr. Part No.1RZ-5/8
BrandBahco
$60.77
Each
units
5/8 in 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 208 mm - Chrome - Alloy Steel
RS Stock No. 487-034
BrandRS PRO
$20.67
Each
units
13 mm Combination - - - 180 mm - Chrome - Chrome Vanadium Steel
RS Stock No. 510-6349
Mfr. Part No.9127D
$107.41
Each
units
27 mm Combination - - - 359 mm - Nickel Chrome Plated - -
RS Stock No. 768-6799
Mfr. Part No.85913
BrandGearWrench
$55.09
Each
units
13 mm Double Ended - Hexagon - 287 mm - Chrome - -
RS Stock No. 487-270
BrandRS PRO
$30.30
Each
units
24 mm Combination - - - 325 mm - Chrome - Chrome Vanadium Steel
RS Stock No. 737-0126
Mfr. Part No.41561620
BrandSTAHLWILLE
$50.27
Each
units
1/4 x 5/16 in Double Ended Ring - Bi-Hexagon - 109 mm - Chrome - Solid Steel
RS Stock No. 382-9400
Mfr. Part No.9110D
$37.88
Each
units
10 mm Combination - - - 159 mm - Nickel Chrome Plated - Hardened Steel
RS Stock No. 668-5777
BrandRS PRO
$44.32
Each
units
1/4 in Mini Head; Reversible - Square - - - Black Chrome Plated - Chrome Vanadium Steel
RS Stock No. 509-9493
Mfr. Part No.9908D
$71.21
Each
units
8 mm Pivot Head; Flex Combination - Pivot Head - 140 mm - - - -
RS Stock No. 768-6878
Mfr. Part No.9212D
BrandGearWrench
$45.15
Each
units
12 x 13 mm Double Ended - Bi-Hexagon - 170 mm - Chrome - -
RS Stock No. 876-6402
Mfr. Part No.1RM-7
BrandBahco
$38.82
Each
units
7 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 140 mm - Chrome - Alloy Steel
RS Stock No. 177-999
Mfr. Part No.FR28SWEU
$61.86
Each
units
1 in Adjustable - - Rubberized Comfort Grip 203 mm - - - -
RS Stock No. 774-6712
Mfr. Part No.05073270001 Joker SW 10,0 SB
BrandWera
$40.24
Each
units
10 mm Combination, Double Ended Joker Hexagon - 159 mm - Nickel Chrome Plated - Chrome Molybdenum Steel
RS Stock No. 510-6355
Mfr. Part No.9120
$87.60
Each
units
20 mm Combination - - - 291 mm - Nickel Chrome Plated - -
RS Stock No. 705-4821
Mfr. Part No.05003695001 8780 C Koloss
BrandWera
$63.85
Each
units
1/2 in - Koloss - Extension 341 mm - - - Steel
RS Stock No. 487-220
BrandRS PRO
$29.22
Each
units
10 mm Pivot Head; Flexible - - - 160 mm - Chrome - Chrome Vanadium Steel
RS Stock No. 457-1916
Mfr. Part No.MS41RS-10
BrandSibille
$87.68
Each
units
10 mm Non Reversible; Ratchet Ring - Hexagon Insulated - Yes - - -
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