The fractional inch drill bits are in intervals of 1/64 inches. Engineering laminate technical data sheet, quick reference, 1 page, height 11 in,. Sheet metal screw to drill bit size table.
Drill bit conversion chart numbers & letters wire gauge drill size comparison chart gauge inches mm gauge inches mm gauge inches mm gauge inches mm 80 0.0135 0.343 53 0.0595 1.511 26 0.147 3.734 a 0.234 5.944 79 0.0145 0.368 52 0.0635 1.613 25 0.1495 3.797 b 0.238 6.045 78 0.016 0.406 51 0.067 1.702 24 0.152 3.861 c 0.242 6.147 Engineering laminate technical data sheet, quick reference, 1 page, height 11 in,. Please send corrections and comments to: Great for auto body shops and tool benches, this drill size chart converts drill bit standard sizes to inches.