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What would be the biggest bit that would work in all through holes in circuit boards to keep it opened for a new part. I'm thinking about #76?? Thanks, Tweaker
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Through hole point to point wired could change things a little as could single or double sided . I'd do high RPM , low pressure and an " as new " bit.
ET
Normally, you choose the drill bit whose size is just a little larger than the component lead that must pass through the hole. The lead for 1/8-watt resistors, legs for ICs, and the lead for TO-3 type devices all differ in size.
The best way is to hold the bit along side the component lead. Have the component lead in front of the bit. If you can see just a little of the bit, then the component should fit through the drilled hole. Another approach is to drill a hole in a bit of scrap material and see if the component lead will fit.
All that to say "one size will not fit all." YMMV
DaveT
Or you can just measure the lead with a dial caliper.
"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln
Well, what size is the component lead? The industry rule is the hole should be a min. of .006 over the max lead diameter, and a max of .020 over the max lead diameter. Any larger and the solder has a difficult time flowing properly.
Hornlover to the rescue again. The op amp pins are about .02. That would put it at a minimum of .026. I ordered up some .028 bits. Should work. Thanks, Tweaker
In you OP you said " in ALL through holes in circuit boards".
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