wrote:
Kev wrote:
Is there a knack for drilling a hole in plywood or am I using the wrong
type of drill. I need an 8mm dia hole and I am using progressively
larger HSS twist drills but the exit hole is ripping the final ply to
shreds.
Should I consider something like a auger or one og those flat drills,
if they are avialble in 8mm.
The exact size is not important as long as it is about 8mm dia.

Don't use flat drill bits or hss drill bits.

These are better for reducing break through damage in wood.

http://www.tool-net.co.uk/data/index.php?ToolID=315691

Just take it easy and don't go at it like a bull at a gate ;-)

Paul.
I have some like these but they are very long drills so I will invest
in a shorter one. At the end of the day the reverse side is hidden, so
will the front side be when the job is finished come to that, it is
just frustrating not to be able to bet a clean hole and believe me I am
being as gentle as I can.

Kevin