Step Drill Bit

[makinrose]

Hello Builders!


What is your experience with a step bit?

I bought one and it is sharp.
Still, when working on a thin sheet of metal I had to use a lot of force and ther was a terrible noise, but not much was cut.
And yes, the drill was even spinning the right way.

I saw Brad Lindsey use one on a thick chassis and that seemed to work very fine!

So, I am very cusious to what your adventures are!


Strelok

The most critical thing with step bits is to use the right speed.  They work best on a drill press with slower speeds and moderate pressure.  To ease the cutting you can use cutting oil, but it is messy.  If you have very thin sheet I'd back it with a scrap piece of wood, so you'd don't deform the metal.   When working with metal I always use hearing protection and safety glasses.  I hope that helps!!