About This Product
If you're doing CNC or VMC work and need to drill large-diameter holes fast, this Buyohlic indexable U drill is a beast.
It's a 21mm drill with a Weldon shank and through-coolant design that keeps chips moving and extends tool life.

The drill uses two indexable carbide inserts (one for the center, one for the outer edge), and when they wear out, you just swap in new ones—no need to resharpen the whole drill.

This is a 2D drill, meaning the maximum drilling depth is 2 times the diameter, so about 42mm.

That covers most common hole depths.

The rigid body minimizes vibration and deflection, which means accurate holes every time.

It's versatile enough for steel, hardened steel, stainless, aluminum, brass, titanium, and even plastics.

The Weldon shank gives you a solid, non-slip grip in your tool holder.

Plus, you get 10 free carbide inserts with every drill order—so you're ready to run right out of the box.
Just make sure to pick the right diameter and depth for your job.

Essential tool for any serious machine shop.
