The ball thrust bearings make those bolted punches very easy to operate.

--
WB
..........
metalworking projects
www.kwagmire.com/metal_proj.html


"Wes" wrote in message
...
"K Ludger" wrote:

I'd like to drill the holes in one go (ie not pilot then change & drill)
any
recommendations as to the best approach or tool that I should use?

Well, looks like you need to use a hole saw. Wonder if they make them
with brazed in
carbide teeth?

I'd drill for a green lee punch and punch. I'd also beg borrow or steal
a hydraulic
model or have an air ratchet to drive a non-hydraulic punch.



Wes