the details for screws punching :
Specification about screw hole punch for aluminium
screw hole punch for aluminium
It is applied to punch screw holes for aluminium windows
3D design by UG software, you can supply us CAD, Solidworks, IGS drawings and PDF drawings with profile samples
15days after down payment arrives
screw hole punch for aluminium can punch screw holes, install holes smoothly, without furs and deform.