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3Pcs HSS Step Drill Bit Set
MEASUREMENT
- 4-12 5 Steps (Diameter 4, 6, 8, 10, 12mm)
- 4-20 9 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20mm)
- 4-32 15 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm)
QUALITY MATERIAL
- HSS step drill bits are constructed from traditional HSS combined with a titanium nitride coating to make them even more durable.
DESIGN
- 118° X-type Split Point - Increases cutting speed with self-centering and prevents walking.
- Two-flute Design - a faster and smoother cutting, allows particles escape easily.
- Hex shank will not spin inside the chunk, compatible with different types of drill machines effectively.
FRIENDLY REMINDER
- Not compatible with hammer drill.
- It is recommended to oil the bit before every use.
- Please drill a smaller hole to make drilling smoother.
- Please do not set drilling speed too high to avoid damages to cutting edge.
- The metal material on which you want to drill should not exceed 0.18-inch in thickness.
- When inject cold water while working, can effectively extend the service life of the drill bit.
WIDE USAGE & OUR SERVICE
- Usage: Suitable for use in the hardness below 25 degrees workpiece, such as iron plate, copper plate, aluminum plate, the thickness of the plate of step is 3mm and wood, PVC sheet, insulation boards with a thickness of 5mm(0.2 inch) or less). Can not be used to hard and brittle materials such as stainless steel, glass, tile floors, walls etc.
- Our Service: If you are not fully satisfied with our product for any reason, We promise you we will offer our greatest sincerity to help you solve the problem.
Matt Bates
2025-09-04 17:09:55
I am mid-process converting an '06 PT Cruiser from US, to UK market specs for a future move. As such, side marker/repeaters must be installed to repeat the blinker light signal. I had bought a set I loved from the UK, designed for a mini. After some modification to the repeaters all I had to do was cut a 22mm hole in the sheet metal in my front wings to mount them, I stuck them down with 3M VHB tape to ensure years/decades of secure fitting.I fully expected these to break drilling a hole of that size into sheet metal, however I was completely wrong and my mistrust was mis founded. After marking the spot with a sharpie, and drilling a 0.5mm pilot hole, the rest was easy. I drilled at half speed with a $16 cordless Hyper Tough drill and it had no trouble, and I was able to mount my new parts with ease. I then used them again to drill additional holes inside the wing and on the inner fender to run the wires through, and secured these with rubber grommets.I would certainly use these again in future projects, they are fantastic for the price. Included a picture to show the final product.
Jason Harrington
2025-08-31 11:17:39
For me, this is a specialty tool, as I assume it is for most of you who don't work at guitar pedal shops or something like that. That said, it doesn't need to be the most durable product. It just needs to be available when I need to make sure I am drilling a big hole to an exact size. I am sure if you strapped this onto a very high-powered tool and drilled into metal with it all day then you could probably mess it up, but really I don't see any reason the average joe needs bits like this to be any more fancy than this, unless you are using them in some particularly prolonged or intense way. I use these to drill holes in metal boxes to install button for musical devices.
I,Customer
2025-06-08 13:43:08
Nice kit
Roberto
2025-05-25 13:27:11
I drilled through some sheet metal pretty quickly with these
Customer
2025-05-17 18:17:02
The product is poorly manufactured.Very dull and doesn't fit quick release chuck drill.I put one of these in a brand new makita impact driver.I couldn't get the damn thing out.I almost ruined my $300 impact driver.When I finally got it out I had to file the end down so it wouldn't get stuck again.
Patrick Melo Modesto
2025-04-04 18:32:15
Very useful tool to have in your tool box for adding rivet nuts after drilling the correct size. I used this on my Honda S2000 which is just a vehicle made of regular steel. The drill bits themselves did not take this steel Well and rounded out after about 20 holes so I will have to buy a new set. glad it’s cheap
Dark Sakul
2025-04-01 10:12:38
I got this step bit drill set to work with arcade panels.Here a picture where I widen holes in the metal panel of an Dreamcast Arcade stick to fit 30mm arcade buttons.Yes the holes are little rough in the picture, but its nothing some filing and sanding can't fit.Got 6 holes drilled with little issues, lets see if this thing last 6 more projects like this.
MKP
2025-02-20 11:15:58
I had to mount an on-off switch on a metal plate and needed to drill a hole for the mounting plate. I bought this set and I'm glad I did! It was a breeze drilling the exact size hole I needed and only took a few minutes. This is a nice heavy set and comes with a little case for storage. I'm very impressed with the quality and highly recommend them!
martin gervais
2025-02-11 14:33:10
Très utile pour travaux polyvalents
Matthew Wu
2025-02-02 13:45:51
I use this to drill holes in wood etc. It opens the holes great and is very useful.
EdgarM
2025-01-31 10:54:48
Not as good as described.
darren
2025-01-01 11:55:28
You don’t have to use these everyday for your job to know they are junk. Tip broke off the big one first try and they won’t cut paper let alone steel
Tk
2024-11-26 15:13:32
Excellent value for the money.
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