My Dremel drill press couldn't be set so that the drill was at 90-degrees to the base.

The adverts claim - "drills perpendicular and angled holes in 15-degree increments, up to 90 degrees horizontal"

The drill itself was canted about 5 degrees anti-clockwise (in a very flexible plastic bracket) - which meant that any holes drilled were off-vertical, and small-diameter drill bits - like the 1mm diamond bits I use for drilling fused-glass jewellery - were prone to snapping.
From Googling on the web - it seems that many people have this problem.

So - I contacted Dremel support...

Here's the response I got

"Dear Adrian,

Thank you for your email.

Please see the response below from the Dremel technical team.

Should you require any further assistance please do not hesitate to contact us.

Problems with Dremel 220 workstation / drill-press

I think what they're trying to say is 'yes - it's as sloppy as a sloppy thing - and not really fit for any serious engineering purpose....'

So if you're looking to drill nice perpendicular holes - don't waste your money on a Dremel drill press
as you'd get more precision with a short piece of sharpened spaghetti!!

Sad really....

Adrian (adrian@inspired-glass.com)