Hi there! Our SHOCKWAVE 13/64 in. Titanium Drill Bit (48-89-4610) is 3.5" in length.
Hi there! Our Shockwave 15/32 in. Titanium Drill Bit (48-89-4627) is for use in metal, wood and PVC.
Hello James, the Shockwave 15/64 in. Titanium Drill Bit has a Titanium coating. This product can penetrate through Stucco.
Start with a 1/8" or smaller bit. Wotk your way up in sizes til you get to the size you need.
Please note that the answers to this question are for the 7/16 in bit only although they come up when searching other sizes. Smaller diameters are proportionally smaller. The 5/16 in bit makes 1" maximum depth holes.
About five inches if you want to make it through the other side. I used this mainly on some stainless steel bars and they worked great.
HRC range is 62 - 67.5.
Probably if you take your time and don't force it. It also wouldn't hurt to use a little drill cutting oil.