Questions and Answers for Milwaukee Black Oxide Step Drill Bit Set (12-Piece)

A:  I think they would do very well. I used them on an old metal box that was a harder steel and it did great.

A:  Hi Homebrew, I drilled through 1" hollow steel tubing which was roughly 1/8 thick steel and solid aluminum... with a little oil (probably cooking oil or PAM to avoid contamination) since you are drilling a keg...I would think it should be fine. Just drill a little slower ...so you don't scorch or dull the bits. However, if you are drilling hundreds of holes a year you may want to invest in a harder strength material as they may dull drilling through that much steel and you would have to keep replacing softer material ones. Best of luck!

A:  used cutting oil on the 2 step bits. used the smaller one first. cut hole fast and clean with no rough edges.

A:  They will dull in seconds if you try to cut stainless steel

A:  NO PROBLEM

A:  I really don't know if this will go through a stainless steel keg as I've never tried going through stainless steel. If you don't have a high speed drill bit, it's probably going to burn the tip off. Good luck.

A:  These bits work well in 11 and 16 gauge carbon steel. The should work fine in thinner stainless.

A:  You can do it, but it will be the last hole you drill with it.

A:  I'm sure they would do the job for the first few holes...go slow and use cutting fluid. but like all bits they'll get dull and loose their edge

A:  They will work at least once with a pilot hole and drilled slowly. Stainless is definitely a bit killer.

A:  THEY HAVE SIZE UP TO I 1/8 BUT LOOK AT WOOD BORING BITS

A:  Up to 7/8" Dia. They make bigger, but this kit is pretty standard use.

A:  The smaller bit goes up to 1/2 inch. The larger bit goes up to 7/8.

A:  This kit allows you to drill holes from 1/16" to 7/8"

A:  It drills in increments up to the maximum size of the step bit.

A:  Up to 7/8" dia.

A:  1/16 TO 1" THERE ARE OTHER SIZE ALSO BUT I QOULD LOOK INTO OTHER WOOD BIT FOR THE WORK I

A:  The answer is in the picture!

A:  Just a note for anyone else, the kit goes up to 7/8" despite the fact that the product photo shows 1-1/8"!

A:  It says on the bit.

A:  I used them for plastic and it was smooth as silk. I had not one issue.

A:  When drilling aluminum, spray or brush a little kerosene or WD40 on the drill bit. It works to keep the aluminum chips from sticking on the flutes, a little goes a long way. Your drilled holes will be smooth. Advice from a Toolmaker.

A:  You can cut in high speed through plastic. You might see some plastic sticking to the bit or melt but the Black Oxide coating will help with lubricity and will help keep the heat down. When drilling in aluminum, Speed #1 on a FUEL drill will be fine, even high speed with an acceptable thin gauge. Be sure to check that no material is left in the flute or stuck to the cutting edge after each cut.

A:  Drill through sheet metal, aluminum tubing, and hard & soft plastic like melted butter.

A:  YES