Thanks Dave R for taking time to guide me through this!Will have a go at this now:)

Thanks Dave R.Attached is the file. As you can see I started out with little circles but didn't go all around the piece but it needs too,the line running through the middle of the circles is the guide which goes around the entire piece.

Thanks for the help.

3dsketch.skp

What I probably should have mentioned is that I will have the same size in wood, so want to do stitching through the timber and leather lasercut - both pieces would look the same. I installed the copyalongcurve tool but struggle to get that too work. Guess its probably about 100 stitches in the piece.The shape is a basic rectangle with rounded corners. I started doing each circle/stitch hole individually but stopped as I thought finding a solution is a better bet so if anyone can guide me to a simple solution or explain to me how I can get that copyalongcurve tool to work It will be much appreciated.when i select the copyalongcurve tool the arrow appears bigger with a square but I cannot seam to select any edge or object. Thanks for all the advice so far.

So I am pretty new on sketchup, I want to do repeating holes 1/10 inches(never used inches before so hope this makes sense) from the edge of my rectangular leather piece that I have drawn out. This will be small holes for stitching. Any ideas how to do this? Thanks