Proto 5448 Plunger Ratchet Adapter

This is marked Proto 5448 with assigned patent number 2671367.

This adapter operates by pressing downward to disengage the toothed spline within from the spline ring of the inner cylinder in order to turn freely in either direction. When not pressed down, the splines are engaged and the adapter will turn the socket.

Drive Size: 
Ratchet Manufacturer: 
Ratchet Brand: 
Production Begin Year: 
Year Produced: 
Ratchet Overall Length: 
Full Ratchet-Drive Side: 
Drive Side Stampings: 
Ratchet Reverse Side: 
Tooth Count: 
32
Ratchet Max Head Width: 
1.00"
Ratchet Head Thickness: 
1.00"
Ratchet Guts: 
Ratchet Mechanism: