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Old 31st October 2012, 04:10 PM   #1
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Location: Jeffersonville, Indiana USA
Default Drill chuck for component leads

I decided to add two diodes to a PWB yesterday to make up for a possibly off brand op amp. Costs $10 shipping to get the $.33 JRC4558D part and my pension doesn't come in for days. It took me over 2 hours with needed rests to drill 4 #61 holes with a pin vise. #61 drills won't fit my 1/4" hand drill, or my precious US made 3/8" milwaukee "holeshooter". The pin vise has threads on the back for the swivel pad and I don't want to put it in the 3/8" chuck and mess them up.
Is there a $20 solution if I want to a lot of these holes? Glass reinforced board is a *****, My next project involves 36 telephone relays with short leads on a very thin board, probably has to be glass reinforced. I know where to buy the carbide drills (mcmaster.com) but where to buy a tiny chuck for my $5 B&D 1/4" drill? I've been using #48 drills and a hand crank stanley yankee drill I found for $2 at the flea market, on fiberboard, but #61 is more correct on a packed PWB. Hand cranking wiggles the drill shaft and would probably break carbide, anyway. #61 drills won't fit the Yankee drill chuck, either.
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Last edited by indianajo; 31st October 2012 at 04:16 PM.
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Old 31st October 2012, 05:30 PM   #2
marce is offline marce  United Kingdom
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I use a cheep version of the dremmel, bought from Aldi in the UK for about 20 quid, I would imagine you can get similar in the USA. The high RPM helps with the smaller bits.
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Old 31st October 2012, 07:13 PM   #3
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try these

Gyros Adaptor Chucks - Works with Dremel
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Old 31st October 2012, 11:02 PM   #4
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Great, gyros adapter chucks are just the thing. Under $20 too!
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Dynakit ST70, ST120, PAS2,Hammond H182(2 ea),H112,A100,10-82TC,Peavey CS800S,1.3K, SP2-XT's, T-300 HF Proj's, Steinway console, Herald RA88a mixer, Wurlitzer 4500, 4300
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Old 8th November 2012, 05:28 PM   #5
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I`ve used a short length of appropriate size PVC or PTFE sleeving to bush a small drill from time to time.
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