Sewing two layers of folded edge chrome leather

[chrisash]

I need to hand sew two layers of about 2mm chrome leather with turned edges together

I have both pricking iron chisel and french style pricking iron and wondering whats best to use

Chisel, pushed through hole and may be stronger but poorer looking stitch

Pricking iron and awl cuts the leather and may start a split if under tension, but nicer stitches 

Leather is used to make car seats

My thinking is the chisel may be best but question my knowledge on the pricking iron cutting the leather enough to do any real damage

All thoughts welcome

[Tugadude]

Personally I would use a chisel, a very small one if you have it.  The diamond-shaped chisels do have bigger tooth profiles as compared to many pricking irons so go with as small as you can.  

If using a pricking iron, just don't allow it to cut all of the way through.  Just a light tap, to mark the line only.

[MaxMizur]

I would use the awl to get the best possible look, and then space your stitches out a little further than usual to avoid having problems under tension. A French seam might also be something to think about in that context.