Features:

  • TITANIUM | HIGH SPEED STEEL: classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal
  • 135° SPLIT POINT TIP: increases cutting speed with self-centering and prevents walking
  • TWO-FLUTE DESIGN: clears chips faster and allows particles to escape easily
  • TRI-FLATTED SHANK: fits into power tools chuck securely and eliminates slip
  • SET INCLUDES: Bit #1 (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"; Bit #2 (13 steps): 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"; Bit #3 (9 steps): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"
More then worth the money!

So far so good! Most reviews here seem to be pretty easy on them. Well I have not been easy on them. They will go threw 1/4" steel they will go threw 3/8" steel and then i pushed them threw 1/2" steel! They are still cutting good after doing this more then once. Clearly going threw that thick you will have steps in the hole unless you needed the hole the largest on the bit which i did! They will start with no hole but it is a bit faster to run a small drill bit first. The key is go slow and keep the heat down! 1/2" steel is not what they was meant for but if you don't over heat them or go to fast you are fine!

I haven't tied using them on anything thicker than a 1/4" but for anything thinner these drill fine.

For the price can't go wrong for these bits. I abuse the hell out of them and they still work. I've used them up to 1/4" thick steel and they still bite well. They show a little rust but for the cost of a name brand bit I'll order several more of these and have several bits that will last me a long time. I haven't tied using them on anything thicker than a 1/4" but for anything thinner these drill fine.

Well made

I have only used this to drill aluminum but it was a 3/16" thick blank tube amp chassis that I had to match to a plexiglass faceplate. I punched pilots, drilled 1/4" holes and then used the step drill as I had 4 hole sizes to finish to. This drill felt very sharp on my fingers when I picked it up and it made very precise holes without any walking or movement. I was able to align the faceplate and install the 2 switches, 7 potentiometers, 4 jacks and a pilot light without any custom fitment. Zero alignment issues. The tolerances on this type of work are tight and unforgiving and this tool worked exactly as it should have. I had nightmares about this as every predrilled chassis has always needed some custom fittment but the washers hide most of it. This was a piece of cake and I'll buy only blank chassis from now on as I get a better result and pay less for the chassis un-drilled.

Extremely tough drill bits

I purchased this three piece set of step drills for approximately $10 on 1/30/2017. I've used them a handful of times over the past 20 months drilling mild steel and haven't had any complaints. Fast forward to today, 8/20/2018, and I found out just how good these bits are. I repurposed an old bed frame and needed to drill 24 - 3/16" holes. Anyone who has ever worked with old bed frames knows how notoriously hard they are because of the high carbon content. I burned up 6 twist drill bits and only made 4 holes then I remembered these bits and gave them a try. They drilled 20 holes and are still sharp. So yes I can say for sure that these step bits are well worth the investment.

Keep a set of these in your toolbox. Drill clean holes in your Weber.

These are very sharp and they cut clean holes. I bought them initially to drill a hole into a porcelain-coated steel surface (a Weber grill actually which has a hard glass-like coating over the steel body). A regular twist drill bit would have shredded the coating around the hole and made a mess. First I made a small 1/8" pilot hole with a twist bit, then I kept the step cuts lubricated with a little oil. These cut very cleanly with no chipping of the porcelain coating. The cutting surface has a much shallower angle, instead of a sharp V as in a regular twist bit. This cutting profile reduces or eliminates the breakout around the hole. Each smaller step center acts as a built in pilot for the next larger cutting surface. I was able to incrementally and step-by-step slowly increase the size of the hole from the pilot 1/8" to the final size. I was very pleased. Next project was in wood to enlarge the holes in a guitar headstock from 5/16 to 3/8, without moving the existing center of the holes. These are perfect for the job. For deeper cuts (deeper than this bit's shoulder depth) as in my wooden headstock, I started the hole diameter with this step drill to get the perfectly centered hole, then I finished it to the final depth with the same sized Forstner bit. For the price these are great to have around instead of trying to rough out a hole to enlarge it. I keep these in my tool box close at hand so I will grab these and do it right when the job calls for it, instead of hacking with a regular drill bit.

wonderful drill bits

This product is excellent. I tried to drill a hole on a stainless steel plate. Before buying this drill set, I used my regular drill bits and could not make a dent on the plate after 5 minutes. I gave up, searched Amazon for a better tool and bought this one. Upon arrival, I tried it and in several seconds, a 1/2" hole was complete.

All I Can Say Is Wow

This was amazing! As an occasional do-it-yourselfer, I have struggled to drill through a stainless steel sink before to install a water filter faucet. It was always a real chore. This time I only needed a half inch hole through the sink so I used the center bit of this set--the one with all the smaller incremental steps, the largest being a half inch. I used the bit itself to mark the spot with a slow few turns. Then I applied just a dab of coconut oil, started to drill, and within 15 seconds I was through the sink with my half inch hole neatly drilled. It went through almost like it was butter! To say I was surprised was an understatement, but I guess when you have the right tool for the right job, it just works.

wow!

For the price, I imagined I'd be getting 1-2 use items, which I was mostly fine with because the 3-pack was well within the impulse purchase threshold. Imagine my surprise when they held up apparently without any damage whatsoever, even after cutting quite a few holes into 1/8" steel. I actually had to be really careful with the stepping because it was so easy to expand the holes, almost went over a couple times. Made short work of just about anything I threw at them. These will definitely be standbys in my shop and will definitely get more when they lose their cut.

Easily drilled through thick metal post

I purchased this bit to drill four holes in a 3/8” thick gate post, and it worked perfectly. I needed four 3/4” holes in a thick post for driveway gate hinges. They are J-hinges with 3/4” bolts that go through the post. To drill the holes, I placed painters tape on the post and marked where the holes should go on each side. I then used a spike and heavy hammer to punch a small indention into the metal. All of the drilling was done with a Ryobi cordless drill, which I had to recharge about half way through. I used a regular 1/8” drill bit to make an initial hole all the way through the metal (this was a regular black bit that had come as a starter set with my cordless drill). I then put this step bit in to widen the whole all the way to 3/4”. As for technique, I used a very very slow speed to essentially scrape away the metal. I used firm steady pressure. But did not use any kind of oil.

A great titanium step drill set for the money

I have found this titanium step drill set to be very useful when making holes in automotive applications. I have successfully been able to drill into everything from plastic to sheet metal with no issues. Recently, I used one of these bits to drill a hole into my dash board by my steering wheel in order to mount a SDST switch for a set of LEDs I was going to be mounting on my vehicle. A great titanium step drill set for the money

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