Info request, Friends Hudson tender bottom

[Harold_V]

Until you drill 100's of holes for rivets..

I couldn't agree more. 304 stainless can be quite aggravating to drill.

H

[Sandiapaul]

Cobalt drills work great, we drill tons of 304 at work with them. Today however I have to try and remove a broken 0-80 tap in a blind hole in a piece of titanium that has about 40 hours of machine work in it!

[Bill Shields]

still prefer drilling into brass / bronze

as for blind tapping in Ti....well......'nuff said on that....

[NP317]

Cobalt drills work great, we drill tons of 304 at work with them. Today however I have to try and remove a broken 0-80 tap in a blind hole in a piece of titanium that has about 40 hours of machine work in it!

Yikes!!
RussN

[Harold_V]

Cobalt drills work great, we drill tons of 304 at work with them. Today however I have to try and remove a broken 0-80 tap in a blind hole in a piece of titanium that has about 40 hours of machine work in it!

EDM?

I have a not so fond memory of trying to tap stainless with 0-80 taps.

H

[Kevin S]

For drilling into Stainless highly suggest getting some Boeinglube.
-Kevin S.

[Bill Shields]

Is that specifically better than Dassault lubrifant?

[Harold_V]

Is that specifically better than Dassault lubrifant?

I don't know that Boelube is better (I'm not familiar with Dassault), but I can tell you that I used it for trepanning the large number of stainless inner seals for a gasketed filter press I built years ago. I had absolutely no luck with the trepanning tool using sulfur based cutting oil, but complete success with Boelube. I recommend it highly.

It's not cheap.

H

[heislerboy]

I once had to drill 100 holes in to 316 Stainless steel and I was using Boeinglube on the drill bit and after I was done the drill bit was still factory sharp. I have also drilled 4 holes into 1-7/8 inch mild steel using Boeinglube and it is like the drill bit was never used after I was done drilling. Now I only use Boeinglube to drill and tap with.

Andrew S.

[Harold_V]

and tap with.

Hmmm. I wonder why I never thought of that? I'm at the tail end of the can of tapping fluid that contains 1,1,1-trichloroethane, so once it's gone I'd be at a loss at what to use.

I thank you for your comment.

H

[Bill Shields]

Get another can from the supply on the back shelf.

[Chris Hollands]

Is there a particular part no or trade name for the product that you are using as there appears to be a couple of Boelube for machining products .
do people have a preferred version .
I have never heard or used it so want to give it a try .