Decode Marks on Jacobs Chucks (Engraving on American Toolholding) скачать в хорошем качестве

Decode Marks on Jacobs Chucks (Engraving on American Toolholding)

The Jacobs Super Chucks have markings, some on the outside that are visible, and some that are only visible when the sleeve is removed. The font and style of the engravings are similar to a mint mark on a coin. Old - Vintage MADE IN USA is easy https://bit.ly/3pXsHOD to spot if you know where to look. Keep track of your jaws, order the correct service kit, determine the manufacturing date and more. The "Extra Heavy Duty Super Chucks" were designed by one person, Aurthur I. Jacobs. He left his mark in the Industry as the design has survived for over 100 years, he left a proud "Mint Mark" on every single arbor. These chucks have been in metal and wood shops across the USA holding bits and drilling holes. Visit your grandfathers garage and you may find one on his benchtop drillpress. Chapters 0:00 Markings 0:54 Jaw Markings 3:58 New Model SN Marking 4:19 Personal Stamping "Spud Hightower" 4:40 Service Kit Marking NEW style History Aurthur I. Jacobs really did hit it out of the park with his new invention in 1900. We have documented some of the history and patents here. http://bit.ly/3pXsHOD . Please SUBSCRIBE 🔔. We are developing useful content to help the machinist community. A free, cancellable Subscription is all we ask. With our free resources centered around skills/tools/knowledge for your shop, I would certainly hope you may spend more time in your shop. To see different combinations of tools/skill/knowledge to augment your most creative ideas in your shop. https://evolventdesign.com To learn about Lubricants for your machines https://oilviscositychart.com If you want to get a sneak peak at what is in front of our camera lens first;   / evolventdesign   The history of gears is surprisingly interesting - the process of milling and hobbing gears plus the transmission of torque and movement all find a place here. We will open the "Secret Gear Case" to YT as well through this channel - a personal mission.   / villagehobber   Disclaimer: https://evolventdesign.com/policies/t...