What exactly is a Nut Splitter? Function? A Guide

A nut splitter operates by pushing the chisel against the flat of the nut until the nut splits. When the screw at the end of the handle rotates clockwise, it presses the chisel or anvil against the flat surface of the nuts until the nut is squeezed between the chisel and the anvil. When the screw is turned more, the chisel slices through the flat of the nuts until it splits.

As the screw turns forward, the chisel is cut through the flat part of the nut until it splits. This can allow for the nut to be taken off, or it could be repeated on the reverse aspect of the nut. This results in the nut breaking into two pieces, causing it to break away from the threaded shaft or bolt.

Some splitters for nuts have two chisels that fit on both sides of the nut rather than a chisel and an anvil. This means the two chisels split each face of the nuts simultaneously by dividing the nut to separate it from the threaded stud or bolt.

What is the mechanism behind a hydraulic screw action function?

The screw on a C-frame nut splitter is equipped with the action of a hydraulic screw press on the piston of the hydraulic ram within the handle instead of being directly impacted by the chisel. The chisel of the splitter is then forced into the inside of the nut by another piston located at the opposite end of the hydraulic ram.

How do hydraulic nut splitters function?

An hydraulic nut splitter tool works in similarly to split the nut. However instead of a screw pressing the chisel against nuts, the action is carried out by an hydraulic ram that is that is controlled by a compressor that is hydraulically controlled.

Hydraulic fluid is pumped through the piston barrel through the port for cap ends and creates a high-pressure area behind the piston as the hydraulic fluid is pumped out of the barrel through the rod’s end port, creating a low-pressure zone just in front of the piston.

The difference in pressure between the pistons causes the piston to move forward in the barrel, pushing the rod in the piston forward and the chisel from the hydraulic splitter into the nuts. The force can be enormous through hydraulics, so they are employed on industrial nut splitters that are large to split big nuts.


Always wear the proper personal safety equipment (i.e., gloves and Safety glasses).

The system’s operating pressure must not exceed the maximum pressure rating of the component with the lowest rating within the system.

To prevent damage to the blade of the nut splitter, housing the plunger, seals, and housing:

  • Don’t cut chains or bolts.
  • Don’t utilize the nut splitter to turn nuts.
  • Don’t remove the nut splitter from the cut process.
  • Don’t warm nuts when the splitter is in its place.

Ensure the system components are safe from damage caused by external sources, including excessive heat, flames moving machine parts, sharp edges, and corrosive chemicals.

Bottom Line

In summary, the nut splitter is a unique tool that was that is designed to efficiently and safely remove damaged or stubborn nuts. It uses the cutting mechanism to break the nut into two pieces, allowing easy removal. The tool is used in industrial, automotive, and maintenance processes in which nuts must be removed without damaging the surrounding components.

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