TWH-NRH Imperial

TWH-NRH Range - Imperial

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The TWH-NRH range of imperial hexagon ratchet heads, suitable for use with TWH-N series low profile hydraulic torque wrenches, provide exceptional flexibility with across flats (AF) sizes from 1 1/16” to 6 7/8” available as standard. All models feature extremely low profile design combined with a minimum nose radius (R) that enables fitment in very confined limited access places. For even greater versatility a comprehensive range of imperial hexagon reducer bushes and square drive conversion kits to suit TWH-NRH imperial ratchet heads are also available. Non standard and special design ratchet heads can be made to order.

  • Choice of standard imperial sizes
  • Easily fitted to TWH-N drive units
  • Strong steel construction
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Hydraulic torque wrenches. Female hexagon imperial size ratchet heads.
Hydraulic torque wrenches. Female hexagon imperial size ratchet heads.
Bolt Size Nut AF Size For TWH27N For TWH54N For TWH120N For TWH210N For TWH430N
Model Number R mm Wt kg Model Number R mm Wt kg Model Number R mm Wt kg Model Number R mm Wt kg Model Number R mm Wt kg
5/8" 1 1/16" TWH27NRH-101 10.5 1.5                        
3/4" 1 1/4" TWH27NRH-104 9.8 1.6                        
7/8" 1 7/16" TWH27NRH-107 9.8 1.6 TWH54NRH-107 13.5 2.9                  
1" 1 5/8" TWH27NRH-110 10 1.6 TWH54NRH-110 10.8 2.8                  
1 1/8" 1 13/16" TWH27NRH-113 10.5 1.7 TWH54NRH-113 10.7 2.9                  
1 1/4" 2" TWH27NRH-200 10 1.7 TWH54NRH-200 11.7 3.0 TWH120NRH-200 14.8 5.8            
1 3/8" 2 3/16" TWH27NRH-203 9.8 1.8 TWH54NRH-203 11.8 3.1 TWH120NRH-203 14.7 6.1            
1 1/2" 2 3/8" TWH27NRH-206 10.3 1.8 TWH54NRH-206 11.8 3.2 TWH120NRH-206 14.8 6.4            
1 5/8" 2 9/16"       TWH54NRH-209 11.6 3.3 TWH120NRH-209 14.8 6.4            
1 3/4" 2 3/4"       TWH54NRH-212 11.8 3.4 TWH120NRH-212 14.9 6.5 TWH210NRH-212 18.3 12.1      
1 7/8" 2 15/16"       TWH54NRH-215 14.8 3.5 TWH120NRH-215 14.9 6.5 TWH210NRH-215 18.3 12.2      
2" 3 1/8"       TWH54NRH-302 12.1 3.5 TWH120NRH-302 15.1 6.5 TWH210NRH-302 18.5 12.3 TWH430NRH-302 26 23.2
2 1/4" 3 1/2"             TWH120NRH-308 16.9 7.9 TWH210NRH-308 19.3 12.4 TWH430NRH-308 26.8 23.9
2 1/2" 3 7/8"             TWH120NRH-314 19.6 8.5 TWH210NRH-314 19.5 12.5 TWH430NRH-314 26.5 25.7
2 3/4" 4 1/4"                   TWH210NRH-404 19.5 13.3 TWH430NRH-404 26.9 26.1
3" 4 5/8"                   TWH210NRH-410 19.3 13.8 TWH430NRH-410 25.9 26.3
3 1/4" 5"                         TWH430NRH-500 27.4 27.9
3 1/2" 5 3/8"                         TWH430NRH-506 25.8 28.3
3 3/4" 5 3/4"                         TWH430NRH-512 24.8 29.3
4" 6 1/8"                         TWH430NRH-602 25 30.1
4 1/4" 6 1/2"                         TWH430NRH-608 25 31.0
4 1/2" 6 7/8"                         TWH430NRH-614 27.3 31.8