Counterbores - what are you using?
#5
(05-01-2020, 01:59 PM)EdK Wrote: I use these types of counterbores I get from McMaster.

https://www.mcmaster.com/counterbores/me...nterbores/

I buy them as I need them. I think I have them for #4-10 screws, 1/4" & 5/16" and maybe a metric one or two. Going from memory so might not be accurate.
They are pricey but once you've used one you'll want more.  Smiley-gen163

Ed



EDIT: Oops! These won't work for threaded holes. The pilot size is larger than the bolt size.

Interesting. I thought those short ones were "porting" tools? 17428 For installing fittings that need a flat sealing surface for o-rings and such? Maybe they just look similar. Obviously there is more to these things than I realized. Slaphead

But the drill tip got me thinking because it looked familiar and I had to go look at my set. What I have now are actually step drills - or I guess you could call them drill / counter bore combination bits. Just a longer version of what you have Ed. Blush
Willie
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Messages In This Thread
Counterbores - what are you using? - by Highpower - 04-30-2020, 10:11 PM
RE: Counterbores - what are you using? - by EdK - 05-01-2020, 01:59 PM
RE: Counterbores - what are you using? - by Highpower - 05-01-2020, 08:31 PM
RE: Counterbores - what are you using? - by TomG - 05-01-2020, 04:48 PM
RE: Counterbores - what are you using? - by Vinny - 05-02-2020, 08:32 AM
RE: Counterbores - what are you using? - by Vinny - 05-04-2020, 12:32 AM
RE: Counterbores - what are you using? - by TomG - 05-06-2020, 10:10 AM
RE: Counterbores - what are you using? - by EdK - 05-06-2020, 11:00 AM
RE: Counterbores - what are you using? - by EdK - 05-06-2020, 12:11 PM
RE: Counterbores - what are you using? - by Vinny - 05-07-2020, 12:15 AM



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