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  • TWH-NRH Range - Imperial

TWH-NRH – Imperial
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

Specifications
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

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