drilling brass - pillar drill or Dremel stand?

[kaszal]

If I wanted to drill some brass block, say for some mounts, what do you reckon is the best, most economical solution? I have a Dremel 300 and a Bosch PSR 960. The Dremel 220 stand looks good...

http://www.ebay.co.uk/itm/400014076895?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_3810wt_905

but something like this is cheaper...

http://www.ebay.co.uk/itm/380425087755?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_2458wt_1110

I'd be using 2.5mm bit in order to use an M3 tap.

Any advice appreciated.

[Candyman]

Brass is quite hard, your better off using a real pilar drill.

If you need some help you can PM me, I do lots of little jobs for people ( I have a little mill and lathe).

[chalky]

pillar drill best option but watch out when the drill breaks through as it will grab and may snap the drill or try to pull it up out of the vice

[Candyman]

Thing is those dremel tend to do silly high RPM because they have no torque, you need to be at about 3000 rpm really. If your going to do it with that make sure you keep it lubed, give it a blast of wd40 or something as you go.

[jpmatrix]

I found that when using a drill for brass it cuts into the material alot easier on slow rpm using meduim pressure. Tried it at high speed with a brand new drill and tooknalot of effort.

So it should be the same when using other tools on brass.

[kaszal]

Thanks for your replies

[Lee24h]

Brass and copper alloys are self lubricating hence why you use copper grease use no coolant and medium pressure on a pillar drill plus brass is not hard its just a dense material hence why its used as weights

[kaszal]

Thanks. Someone did it for me. Here are photos...

http://www.oople.com/forums/showpost.php?p=643705&postcount=560