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TWH-NRH Range – Imperial

TWH-NRH Range – Imperial

Imperial Ratchet Head Selection Table

Bolt SizeNut AF SizeFor TWH27NFor TWH54NFor TWH120NFor TWH210NFor TWH430N
Model NumberR mmWt kgModel NumberR mmWt kgModel NumberR mmWt kgModel NumberR mmWt kgModel NumberR mmWt kg
5/8″1 1/16″TWH27NRH1.1/1610.41.5
3/4″1 1/4″TWH27NRH1.1/49.71.6
7/8″1 7/16″TWH27NRH1.7/169.81.6TWH54NRH1.7/1613.52.9
1″1 5/8″TWH27NRH1.5/810.01.6TWH54NRH1.5/810.82.8
1 1/8″1 13/16″TWH27NRH1.13/1610.51.7TWH54NRH1.13/1610.72.9
1 1/4″2″TWH27NRH210.51.7TWH54NRH211.73.0
1 3/8″2 3/16″TWH27NRH2.3/1610.31.8TWH54NRH2.3/1611.83.1TWH120NRH2.3/1614.76.1
1 1/2″2 3/8″TWH27NRH2.3/810.51.8TWH54NRH2.3/811.83.2TWH120NRH2.3/814.86.4
1 5/8″2 9/16″TWH54NRH2.9/1611.63.3TWH120NRH2.9/1614.86.4
1 3/4″2 3/4″TWH54NRH2.3/411.83.4TWH120NRH2.3/414.96.5TWH210NRH2.3/418.312.1
1 7/8″2 15/16″TWH54NRH2.15/1614.83.5TWH120NRH2.15/1614.96.5TWH210NRH2.15/1618.312.2
2″3 1/8″TWH54NRH3.1/812.13.5TWH120NRH3.1/815.16.5TWH210NRH3.1/818.512.3TWH430NRH3.1/826.023.2
2 1/4″3 1/2″TWH120NRH3.1/216.97.9TWH210NRH3.1/219.312.4TWH430NRH3.1/226.823.9
2 1/2″3 7/8″TWH120NRH3.7/819.68.5TWH210NRH3.7/819.512.5TWH430NRH3.7/826.525.7
2 3/4″4 1/4″TWH210NRH4.1/419.513.3TWH430NRH4.1/426.926.1
3″4 5/8″TWH210NRH4.5/819.313.8TWH430NRH4.5/825.926.3
3 1/4″5″TWH430NRH527.427.9
3 1/2″5 3/8″TWH430NRH5.3/825.828.3
3 3/4″5 3/4″TWH430NRH5.3/424.829.3
4″6 1/8″TWH430NRH6.1/825.030.1
4 1/4″6 1/2″TWH430NRH6.1/225.031.0
4 1/2″6 7/8″TWH430NRH6.7/827.331.8
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Description

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.

Additional information

TWH-NRH Range - Imperial

1 1/2", 1 1/4", 1 1/8", 1 3/4", 1 3/8", 1 5/8", 1 7/8", 1", 2 1/2", 2 1/4", 2 3/4", 2", 3 1/2", 3 1/4", 3 3/4", 3", 3/4", 4 1/2", 4 1/4", 4", 5/8", 7/8"