What are the parts of a ratchet tube cutter?

 
     
     
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    Parts of a ratchet tube cutter; anvil jaw, blade, safety lock, handles, ratchet system. 
     
   

Ratchet tube cutter blade

 
 Blade of a ratchet tube cutter 

The blade of the ratchet tube cutter is operated by squeezing the two handles together. It takes around 3 squeezes of the handles to complete a cut. 

 
     
   

Ratchet tube cutter anvil jaw

 
 Anvil jaw of tube cutter 

The piece of tubing is rested in the anvil jaw. It helps the tube keep its shape under the pressure of the blade and prevents some warping. 

 
     
 Wonkee Donkee says; Warping is when the tube cracks or becomes misshapen under the pressure of the blade. 
     
   

Ratchet tube cutter safety lock

 
 Safety lock on and off on a ratchet tube cutter 

The safety lock on the ratchet tube cutter is a metal loop which clips over both handle ends to keep them pushed together, therefore keeping the blade pressed into the anvil jaw.

 
     
   

Ratchet tube cutter system

 
 Ratchet mechansim 

The ratchet mechanism consists of a round gear with slanted grooves (teeth) around the edge and a spring loaded finger or pawl, which prevents a backwards motion. The ratchet mechanism allows the handles to be squeezed together more easily. 

 
     
   

Ratchet tube cutter handles

 
 Ratchet tube cutter handles 

The handles of the ratchet tube cutter control the blade and ratchet mechanism. When squeezed together, the ratchet mechanism is turned and the blade pressed down. The handles need to be squeezed together around three times to complete a cut. 

 
     
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