drill bits

[El Pescador]

... I might go for only a few drill bits as I don't use a lot.  Dominick

Dominick!

Don't know why you just need a few drill bits,

YOU JUST HAVE A SCREW LOOSE

I'm dropping off Rick's Jerky later today,

Wayne

[Alto Mare]

... I might go for only a few drill bits as I don't use a lot.  Dominick

Dominick!

Don't know why you just need a few drill bits,

YOU JUST HAVE A SCREW LOOSE

I'm dropping off Rick's Jerky later today,

Wayne

You beat me to it ...

[Dominick]

Yeah, and I don't use a lot of my screws either.    Dominick

[El Pescador]

Sal!

When served up a whiffle ball...

I swing for the fence!

Next time the underhand pitch from Dominick sails right over the plate is yours Sal!

Wayne

[Dominick]

Yuck, yuck yuck, now tell them about the Donner party... Dominick

[Reel 224]

My use of drill bits are machine bits. I use jobber bits very seldom.........................Joe

[Donnyboat]

Fred & Joe thanks for you info, very good, & Wayne thanks for your info, on the screw loose, I try to stay away from thems blokes, is there anymore like that Wayne, cheers Don.

[Alto Mare]

First, I'm not a machinist. I was drilling stainless steel shafts using cobalt high-speed bits, I purchased a broken new box on line for 50% off. They are still doing a good job, but for the stainless steel shaft, I wasn't too happy.
A friend  mentioned irwin black and gold high-speed steel bits. he said to try plain water with a spay bottle to keep them cool...I was impressed. This was the reason I asked Mike what he uses for his custom work. Mike said cobalt, by the way.

Sal

[Donnyboat]

Hi Sal you always helpful, thanks a million buddy, Cheers Don.

[Alto Mare]

Hi Sal you always helpful, thanks a million buddy, Cheers Don.

Hello Don, I just wanted to put out my experience with these for what its worth. Usually I don't follow the rating of the product, unless it has a bunch of negative comments. I like to try them for myself.
I'm certainly not pushing you away from what the pros have mentioned above .

Best,

Sal

[Reel 224]

Sal: You don't have to a Machinist to learn something about the tools that are used, For boring holes is Stainless it is better to use screw machine bit in order to keep the bore straight, jobber bits have to much flex. We can learn from every person here if they are willing to advise.

Joe   

[RowdyW]

First, I'm not a machinist. I was drilling stainless steel shafts using cobalt high-speed bits, I purchased a broken new box on line for 50% off. They are still doing a good job, but for the stainless steel shaft, I wasn't too happy.
A friend  mentioned irwin black and gold high-speed steel bits. he said to try plain water with a spay bottle to keep them cool...I was impressed. This was the reason I asked Mike what he uses for his custom work. Mike said cobalt, by the way.

Sal

Sal, if you get the chance try some water soluable cutting oil. I know it is available at industrial hardware stores. It can be mixed with water 10:1,20:1,30:1,etc. Years ago when I worked in my Dad's machine shop that's all we used for all metals. The other good part about it is any over spray that gets on the machinery the water evapoates & the oil protects the machinery.             Rudy

[George6308]

Brownells's also has a cutting/tapping lube: Do Drill.

[Three se7ens]

Sal: You don't have to a Machinist to learn something about the tools that are used, For boring holes is Stainless it is better to use screw machine bit in order to keep the bore straight, jobber bits have to much flex. We can learn from every person here if they are willing to advise.

Joe   

I second that.  I use screw machine length bits almost exclusively.  They are plenty long for nearly everything, and work so much better.  They flex less, walk less, and you can put more pressure on them, which is just what you need for stainless.  I get mine from mcmaster because I mostly only use them in a handful of sizes for tapped holes.  Lots of options there.

And if you have a setup that accomodates them (drill press or mill, and a well clamped workpiece), carbide drill bits are awesome.  They go through stainless and titanium like butter. 

[oc1]

While the experts are here....
Do 135 degree bits will walk less on stainless than 118 degree bits?  Or, do I have that backwards?
Thanks,
-steve