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Keystone Saw Works - H. Disston & Sons, Inc. - Phila., PA


 
  Disston D8 - full size 28", 5 ppi Rip Saw, 1880s - a review by Daryl Weir 1 of 3  

Daryl Weir

 

"If you want a Saw, it is best to get one with a name on it which has a reputation. A man who has made a reputation for his goods knows its value, as well as its cost, and will maintain it."

Henry Disston

One of Disstonís main stays in production line was the ever popular D8 thumbhole or dual grip rip saw. The saw shown here is an early 1880's era, 28" (blade length) with a 5ppi graduated to 6ppi at the point.

In recent years the term "variable pitch" has been used on saws that have "graduated teeth". Historically, this term is actually not correct.

"Pitch" was a term used in all of the old catalogs and saw literature that meant the same as the "rake" on the front of the teeth. Think of it as the same as the "pitch" on your roof. "Pitch" is used on screws or threads and to my knowledge was never used on saws back in the day.

This saw has plenty of blade width left along with a lightly breasted (crowned) cutting edge. The blade is clean for a 130 year old saw and has been hand polished to a smooth & slick surface. It does have some very light pitting in a few locations, an area that appears to have had some water damage, but nothing that presents a performance problem.

The skew back pattern was patented by Henry Disston in 1874 and as time went on became one of his most prolific sellers. Disston claimed this to be "The saw most carpenters use".

The radial cut curve at the back of the blade rested against a like cut curve in the wood handle that supposedly creating a better bearing surface.

The early-style keystone etch and script can still be read.


 
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Disston Backsaws



   

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