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Thread: Chuck key
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17th Jun 2020, 12:39 AM #31Intermediate Member
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17th Jun 2020, 03:19 AM #32
Hi Guys,
Someone missed the filing classesBest Regards:
Baron J.
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17th Jun 2020, 05:40 AM #33
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17th Jun 2020, 09:38 AM #34Most Valued Member
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17th Jun 2020, 09:56 AM #35Most Valued Member
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17th Jun 2020, 11:55 AM #36Most Valued Member
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17th Jun 2020, 07:42 PM #37
Hi Guys,
Most of my files are at least 50 to 60 years old or more. Some of them belonged to my grandfather. Many were given to me by a mentor in my youth. The only ones that I've actually gone out and bought for my self have been diamond ones.
I actually have to go to Birmingham at some point to collect a couple of dozen of them that a friend is looking after for me that came from a locksmiths factory there.
Filing is not too onerous, reasonably hard work, yes, but like all other skills it takes time to learn !Best Regards:
Baron J.
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17th Jun 2020, 08:35 PM #38Intermediate Member
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I don't enjoy hand filing hardened material with an ordinary file (that's what my reference was all about). I do enjoy filing though, and remember my classes!
I've not had the pleasure of viewing or using a diamond file. Another item for my wish list now, as if it wasn't long enough already!
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17th Jun 2020, 09:44 PM #39Most Valued Member
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Are chuck keys hardened?
Chris
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17th Jun 2020, 10:28 PM #40Most Valued Member
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Hey baron I’m not surprised you find filing hard work with 60yo files.. they’re probably duller than most apprentices..
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17th Jun 2020, 10:32 PM #41Most Valued Member
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18th Jun 2020, 02:35 AM #42Intermediate Member
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Yes definitely, and the base material is not just 1018/20 either. Usually made of something like 4140 and generally through hardened. Case hardening would be likely to crack over time so they don't go down that path. Ever try to straighten a bent chuck key? (usually doesn't end well!)
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18th Jun 2020, 02:50 AM #43Intermediate Member
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18th Jun 2020, 03:28 AM #44
Hi Adam,
Some are just heirlooms ! Surprisingly some of the old ones cut better than the newer ones. I would guess that in an industrial setting its easier to just get a new file out of the stores than struggle or find one. I've three cardboard trays full of files to go at. Sadly no apprenticesBest Regards:
Baron J.
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18th Jun 2020, 09:57 AM #45Most Valued Member
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Your thoughts may differ but I see no reason to use anything exotic to make a chuck key from. I made sailors from a piece of mystery metal. Some applications need material like 4140, I don’t see a chuck key being one of those applications. The picture of the one made from square bar chewed by an angry beaver earlier in the thread tends to support this theory
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