Small Hole drilling - Aluminium

"Matthew Ensor" wrote in news:Jd7Kk.26129$ snipped-for-privacy@newsfe03.ams:

This might be a little too spendy but is a better way to go.

or something like this

I think you can get the CAT40 electric set up for around $2,500.00 Not sure though. The air spindles would be cheaper yet, but cost more to run and will have a shorter life.

I always thought it would be cool to use thru spindle coolant for this purpose (instead of air turbine or electric motor)--beings as the actual horsepower requirements for small diameter tools probably tends to average less than a single horsepower.

"Bipolar Bear" wrote in news:gdbp1o$1vi7$ snipped-for-privacy@alt.net:

Doesn't some company in Europe make something like that?

I swear I saw something like that at a show.

We used a BT40 speeder a long while back that was 30k rpm IIRC. It used the through tool coolant to keep it cool. It was alright for drilling but it chattered like crazy for milling.

That was an original thought, but I have used speeders before, and not found them to have too long a life span. Like the idea of the electric spindle from NSK , will contact the UK re-seller on Monday. Am still investigating the Spindle chillers, which may be the better long term option.

"Matthew Ensor" wrote in news:ZrKKk.47041$ snipped-for-privacy@newsfe16.ams:

I've had very good luck with the NSK stuff. Also look at Ibag, they make the same sort of thing.

The NSK's are cheap to repair. At least they are here anyway.