Neiko 10194A Titanium Step Drill Bit, High Speed Steel | 1/4” to 1-3/8” | Total 10 Step Sizes

• 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
• INCLUDES 10 STEP SIZES: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8"

Neiko Tools U.S.A. Titanium Step Drill Bit 1/4" to 1-3/8" in 1/8" Increments, Two-Flute Design for Faster, Smoother Cutting, 3 Flatted 3/8" Shank, Heat Treated HSS with Titanium Nitride Coating, Self-starting - no walking and no center punch required, Perfect for clean holes in thin materials like steel, stainless steel, copper, aluminum or plastic

                                  

By kevin

This drill bit did exactly what I hope it would do. I drilled a 7/8 hole through my stainless pot with ease. My ball valve fit perfectly.

By Multiplier

I needed to drill a 1-3/8" hole in a stainless steel kitchen sink (not sure of the thickness, but it was a heavier gauge than some of the less expensive sinks I've seen) for an instant hot water device. I had another step bit that wouldn't touch it. This one did the job, albeit with some time and effort. I started with a 1/8" bit and worked up to 3/8" or 1/2" (I forget which) before using the step bit. Then, I drilled one step at a time using liberal amounts of cutting oil, it cut slower as the hole got bigger which makes sense as it was working harder to remove more material. The key to the job was letting the sink and bit cool down between steps (cool water helped speed up the process and also kept the sink from warping). I had my wife drizzle oil on the bit/sink while I drilled - messy but effective. Bit seems to have survived just fine, still feels nice and sharp. As an aside, we love the instahot, too - it was worth the effort!

By Jason Wiles

This cut through a large stainless steel kettle like butter. Can't attest to how long it will last but I see no reason why it would not last for a couple dozen holes. Just make sure to use low RPM and a quality cutting fluid like Tap-Magic extra thick. Excellent product for the price and a good tool to have in the homeowner/hobbyist arsenal.

By Ed Dwan

I home brew and used this on my stainless steel pot to install the Heavy Duty 1/2" Weldless Bulkhead w/ Stainless Steel Valve, the Bayou Classic 800-770 Brew Thermometer, on my stainless steel 42 qt pot. If you drill a 1/8" pilot hole, take it nice and easy, this bit works like a champ. I used liquid dish soap as a lubricant / cooling agent, and finished the holes with a file. I had absolutely no problems with this tool. I'm sure there are better quality bits being offered, but for this price point and free shipping, who's complaining?

By adamgonzls

I bought this drill bit in order to widen a hole in my stainless steel sink.
The soap dispenser I bought had a wider diameter than the one that was there before (because life just does that to us sometimes).
After briefly going through the emotions of despair and anger, I went to Amazon, read some reviews, and bought this bit.
This worked like a charm. It made quick work of the steel and on the occasion where I drilled a too fast and the bit tangled with the steel, I simply reversed the drill to un-jam and de-burr the opening, and then threw it back into drive and started drilling again.

By B-man

I used this to cut holes in a 2 mm thick aluminum plate for my tube amp chassis build project. It cut through the aluminum with ease and made some very nice and clean holes. I couldn't be happier! Pics attached show a xerox color copy of my circuit board taped to the aluminum sheet, which I used as a guide for cutting out the holes. The final 1 inch holes came out beautiful! A really great bit at a very affordable price! Love it! :)

 

By ECP

Usually because of lubrication, or simply not the right speed setting, Bi-metal bits can be tricky, (without a drill press.) This step bit rounded out my irregular hole in a stainless sink and gave me a nice smooth hole. It bound a bit with too much pressure, but backing off I made steady progress until, viola! This was sooo easy that I will never use another bi-metal bit on a stainless steel sink.

By Just Bob again

Can't say how long it will last since I haven't had it long. Easy to sharpen, anyway. If you want to drill heavy stock, no. This is for thin sheet. Probably 10ga maximum. Stainless? Get one of the cobalt bits that cost 5 times as much. Given that's it's not a premium expensive item, it's great. Far easier than a hole saw or knockout punch. No slug to pry out. No starter hole. Don't expect to hold the work freehand for large holes. It needs a lot of torque and 2 hands to control the drill. I would not attempt to use it in a drill press for large holes. Needs maybe 100 RPM and unless you clamp the work it's dangerous. I wish they had larger sizes. The biggest I could find (another brand) was 1 1/2 inch and real expensive.

By Steve H

I had to drill a 1 1/4 inch hole in a stainless steel sink. I used my cordless drill, and squirted wd-40 liberally as I worked. I started with a 1/8" pilot hole at the lowest speed. It snagged a lot, but I'd just back it out and change the angle.

My sink was pretty thin, so the hole was not perfectly round and would have needed some dressing if it showed, but it was just fine for installing a water filter spout.

I would say that this bit is good for at least a couple of more holes like that one.

By C. Jackson

I bought this, to be perfectly honest, because I didn't want to pony up the 50+ dollars for the Irwin. I was drilling through pretty conventional sheet so I didn't really have the highest requirements either, and was pleasantly surprised by my investment. I expected the bit to jump around a lot, maybe kick dangerously, and probably get worn down by the process. It did jump some (I was drilling a 1.125" hole, after all), but given firm and consistent pressure did the job admirably smoothly, and admirably quickly. The bit was "scratched" a little by the experience, but it lived to drill another day and I'm perfectly pleased with my investment. I'm not sure my drill would survive drilling in to solid metal with this or even the Irwin bit but for going through sheet it worked out just fine. I was, however, amazed at how far some of the metal shards managed to fly. It should go without saying that wearing eye protection, and probably full face protection is probably recommended while using this. Them little metal bits are hot and aggressive coming out of this.