Solving a 100-Year-Old Drill Chuck Issue

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SUMMARY

The discussion centers on a 100-year-old hand-operated bench drill with a malfunctioning three-jaw chuck that fails to center drill bits. The user, Michael, has cleaned and oiled the chuck but suspects worn springs may be the issue. He inquires about alternative reasons for the centering problem and seeks sources in the UK for replacement springs. The possibility of fabricating new springs using piano wire and access to a lathe is also mentioned.

PREREQUISITES
  • Understanding of three-jaw chuck mechanisms
  • Knowledge of spring fabrication techniques using piano wire
  • Familiarity with lathe operation
  • Basic maintenance skills for vintage machinery
NEXT STEPS
  • Research the specifications and dimensions of three-jaw chuck springs
  • Learn about the process of making springs with piano wire
  • Investigate suppliers of vintage drill parts in the UK
  • Explore common issues and solutions for vintage drill maintenance
USEFUL FOR

Vintage machinery enthusiasts, mechanical engineers, hobbyists restoring old tools, and anyone involved in the maintenance of hand-operated drills.

HarrySTruman
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I have picked up a very old (possible 100 years of age), hand operated, bench drill. After cleaning years of dirt and rust off the machine it seems ready to go to work in the school workshop. There is a huge problem though, the drill bits will not centre in the three jaw chuck. I have had the chuck off and cleaned and oiled it. The three springs are present but I am wondering if they are worn. I know that it is possible to make your own springs with piano wire, and I have access to a lathe, but are there any other reasons why the drill will not centre? Also is there anywhere, preferably in the UK where I could get these small springs from if that is the reason why it won't centre?

Would be grateful for any thoughts on this.

Best wishes

Michael
 
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Possibly made for bits that have a flat side.
 

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