All jaws come standard made from A2 Tool Steel, heat treated to 55~ Rockwell
**I offer other options as well: smooth tool steel, solid aluminum, solid brass, solid bronze, solid copper. Price varies depending on materials used; contact me for more information**
 
These fit the following models:
Prentiss #19
Prentiss #51
Prentiss #181
 
Length: 3-1/2" (3.520")
Height: 1-1/8" (1.125")
Thickness: 1/2" (0.460")
Bolt center-to-center: 2-1/2" (2.500")
Back slot width: 5/8” (0.630”)
 
Comes with 1/4-20 socket head cap screws (x4)
 
**Jaws are usually stocked but sometimes must be made-to-order if I am running low. Your order will be created and shipped on a first come, first serve basis. Thank you!**