Joe AutoDrill wrote:
I've got a customer trying to drill a 1-1/16" diameter hole through a thin
(1/16") piece of wood/plastic composite material.

They can't really use a hole saw because the "plug" gets stuck in the center
of the tool and the process is automatic, running a few hundred holes per
shift and only stopping the drill machine to end a shift or change a tool.

I know they make plug ejection tooling for metalworking hole saws (I sell
'em!) but they don't work with thin wood or plastic materials so I doubt
they will work with this.

I'm thinking there is either a special tool for this that ejects the plug or
that someone sells a unibit (stepped drill bit) off the shelf with the
1-1/16" diameter capability... But I can't find the daggone thing.

Anyone have any good ideas for me other than having custom tooling made or
modifying a standard hole saw? Maybe a source for that stepped drill bit
(looks like a Christmas tree).

Already tried McMaster and MSC but I'm sure there are other options out
there or that I may have missed it.


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
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V8013-R

How about a 1 1/16" forstner bit?