About This Product
These Drill America cobalt steel drill bits are made for serious drilling in tough materials.

They're screw machine length, which means they're short and rigid—perfect for portable drills or machine work where you need stability and precision.

The 135-degree split point is self-centering, so you don't have to fight it to get started, and it reduces thrust so you don't burn out the bit.

The gold oxide finish helps identify them as cobalt steel, which gives you better performance when drilling hard metals like stainless steel, Inconel, or titanium.

The spiral flute design pulls chips out cleanly to reduce clogging.

These meet NAS 907 standards, so they're aerospace-grade quality.

If you're working in a machine shop or doing heavy fabrication, these are the bits you want in your box.

