Size: 3.38*2.12inch, thickness:0.039inch They are polished and no sharp edges They are good for engraving. You may use these to DIY your business card
100 Black Anodized Aluminum Business Card Blanks Laser Engraving
Size:1.96inchX1.18inch thickness:0.039 inch diameter of hole:0.11 inch Since the material is aluminum, it's easier to be stamped than stainless steel.
StayMax Anodized Aluminum Engraving Blank Tags Stamping Blanks 50 Pack (Black)
uxcell Blank Metal Card 80x50x0.4mm Brushed 201
Anodized Aluminum Sheet
StayMax Aluminum Business Cards Blanks Aluminum Blanks
Size: 3.3 by 2.1 Thickness per batch will be 0.45mm-0.5mm please understand this is a very small difference in thickness if 0.001968504 of an inch
50 Pack Thick Aluminum Business Card Blanks, Metal Plaque Blank 0.5mm Laser Engraving Material, Sublimation, CNC, Base Plate Multipurpose (Mixed)
StayMax Anodized Aluminum Business Cards Blanks Metal Engraving
StayMax Aluminum Business Cards Blanks Aluminum Blanks
Cricut Aluminum Sheet