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Prentiss #21 (5-1/4 inch) Serrated Vise Jaws

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  • Here is a Prentiss Bulldog that accepted the # 21 jaws. Great job restoring this vise Joel M.
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 Product Description

A pair of new replacement Serrated Vise Jaws for the Prentiss #21 and the #94 Bulldog Vise.  They also fit the #255, #526, #516 and possibly the # 4.  Contact me for exact dimensions.

A-2 Tool Steel is Heat Treated to 54-56 Rockwell. The colorful pattern on the serrated jaws happens during the Heat Treating process when nitrogen is used. After Heat Treating, these jaws are surface ground flat and then squared.

I slotted the screw holes to allow for adjusting the jaws to match your vise. The threaded hole in the vise is not in the center of the 3/4 raised boss area so I slotted the jaws to match where the 5/16:18 threaded hole.

(4x)  5/16:18 Short Head Cap Screws supplied.

These are Premium Handcrafted Jaws.

Made in the USA.


Length                                         5-1/4             

Width                                           1-3/8    

Channel Width:                            3/4    ( .755) a little wider to fit easier.

Channel depth:                            1/4       

Thickness                                     5/8                

Distance between screws.          3-1/2            

Screw Size                                   5/16:18

 Product Reviews

  1. Brought a rare breed giant back to life.

    Posted by Jacob Fredeking on 15th May 2018

    Every man should have a big vise in their garage/shop. My swivel top Prentiss Vise #182 1/2 was in desperate need of a new jaw set. Kevin is the only one who has the passion, dedication , and machinery to keep many different types of vises around for many years to come. Great communication concerning tolerance issues before the purchase was essential to make sure that jaws had the potential to fit my 182 1/2. Sure enough, the jaws fit. Now I have a vise that has a grip on anything that will fit in the vise. Amazing sums up my whole experience. Thank you so much Kevin for making this possible.

  2. A quality product and great customer service

    Posted by Joel Mancuso on 25th Feb 2014

    I purchased a pair of these jaws for a prentiss bulldog I was restoring. I cannot express in words the quality of these jaws. They are just as good if not better than the factory jaws because they are stainless steel. The jaws are slightly over sized so you can grind them to fit seamlessly to your vise. I would not hesitate to buy another pair and in fact I have been in contact with Kevin to make a pair for my Simplex 61p as I type this. Thanks for making these jaws kevin because there would be no other good alternative if you didn't. Thanks Joel M.

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