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Hardened Precision Ground Parallels 1.717 x .998 x 7 inch Toolmaker Made in USA, US $95.00 – Picture 0
Hardened Precision Ground Parallels 1.717 x .998 x 7 inch Toolmaker Made in USA, US $95.00 – Picture 0

Hardened Precision Ground Parallels 1.717 X .998 X 7 Inch Toolmaker Made In Usa

US $95.00

  • Marysville, California, United States
  • Mar 29th
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 For sale are a matched set of  hardened precision ground parallels. They were made by a skilled toolmaker in the USA in the 1960's. The size is 1.717 x .998 x 7.0015 inches. The sizes are within +- .0002 except the length which is +- .0005 inch.  They are flat, parallel and square within .0002 inches on all surfaces except the ends. the ends are ground to within .0005 square. They are hardened tool steel and I estimate the Rockwell to be around 60. They have been used for machining parts as well as inspection. The holes are 3/4 drilled and chamfered. They weigh 2 lbs 11 oz a piece. Includes matched set of 2 parallels. The scale in the picture is not included. Thank you for looking! Please contact me with any questions.
“Very good condition. A few dings and 2 small places that were run into by a cutter or drill but nothing major or anything that would affect the function of the parallels. Some discoloration and patina from age but no rust.”
Country/Region of Manufacture United States

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