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 inch Wt lbs Model Number R inch Wt lbs Model Number R inch Wt lbs Model Number R inch Wt lbs Model Number R inch Wt lbs
5/8" 1 1/16" TWH27NRH-101 0.41 3.3                        
3/4" 1 1/4" TWH27NRH-104 0.39 3.5                        
7/8" 1 7/16" TWH27NRH-107 0.39 3.5 TWH54NRH-107 0.53 6.4                  
1" 1 5/8" TWH27NRH-110 0.39 3.5 TWH54NRH-110 0.43 6.2                  
1 1/8" 1 13/16" TWH27NRH-113 0.41 3.7 TWH54NRH-113 0.42 6.4                  
1 1/4" 2" TWH27NRH-200 0.39 3.7 TWH54NRH-200 0.46 6.6 TWH120NRH-200 0.58 12.8            
1 3/8" 2 3/16" TWH27NRH-203 0.39 4.0 TWH54NRH-203 0.46 6.8 TWH120NRH-203 0.58 13.4            
1 1/2" 2 3/8" TWH27NRH-206 0.41 4.0 TWH54NRH-206 0.46 7.1 TWH120NRH-206 0.58 14.1            
1 5/8" 2 9/16"       TWH54NRH-209 0.46 7.3 TWH120NRH-209 0.58 14.1            
1 3/4" 2 3/4"       TWH54NRH-212 0.46 7.5 TWH120NRH-212 0.59 14.3 TWH210NRH-212 0.72 26.7      
1 7/8" 2 15/16"       TWH54NRH-215 0.58 7.7 TWH120NRH-215 0.59 14.3 TWH210NRH-215 0.72 26.9      
2" 3 1/8"       TWH54NRH-302 0.48 7.7 TWH120NRH-302 0.59 14.3 TWH210NRH-302 0.73 27.1 TWH430NRH-302 1.02 51.1
2 1/4" 3 1/2"             TWH120NRH-308 0.67 17.4 TWH210NRH-308 0.76 27.3 TWH430NRH-308 1.06 52.7
2 1/2" 3 7/8"             TWH120NRH-314 0.77 18.7 TWH210NRH-314 0.77 27.6 TWH430NRH-314 1.04 56.7
2 3/4" 4 1/4"                   TWH210NRH-404 0.77 29.3 TWH430NRH-404 1.06 57.5
3" 4 5/8"                   TWH210NRH-410 0.76 30.4 TWH430NRH-410 1.02 58.0
3 1/4" 5"                         TWH430NRH-500 1.08 61.5
3 1/2" 5 3/8"                         TWH430NRH-506 1.02 62.4
3 3/4" 5 3/4"                         TWH430NRH-512 0.98 64.6
4" 6 1/8"                         TWH430NRH-602 1.0 66.4
4 1/4" 6 1/2"                         TWH430NRH-608 1.0 68.3
4 1/2" 6 7/8"                         TWH430NRH-614 1.08 70.1