EONLION 5pcs Step Drill Bit Set, Hss Cobalt Multiple Hole 50 Sizes Titanium Step Drill Bits Tool with an Carrying Case
Descripción
- About this item
- HSS & TITANIUM COATING - High speed steel makes it last longer than others, titanium coating ensures easily cut through steel sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease, and it can automatically deburr holes while drilling to keep the drill bit clean.
- 50 SIZE IN 5 - The bits set includes five standard step drill bits that can replace 50 individual drill bits, you can process 50 different kinds of diameter holes with the five pieces.
- TWO-FLUTE DESIGN: The drill bit point is designed as X-shape, which can prevent the drill slipping while working in high speed. With two-flute design, the scrap can be efficiently stopped from splashing.
- CONVENIENT: Self-centering features prevent slipping and increase cutting speed. Workable diameters are marked in the drill. It is very convenient for you to choose workable size. Portable-coming with an aluminum carrying case. For DIY lover.
- 24 MONTH WARRANTY: Our warranty time is longer than others as our quality is guaranteed, unconditionally refund or resend with any quality problems, life time friendly customer service.
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EONLION step drill bits set replaces 50 individual drill bits in 5 pieces step drill bits, which saves you a lot of trouble and space.Two-fluted design provides faster and smoother cutting. High speed steel along with titanium coating ensures this set with outstanding durability and will stay sharp for years to come, perfect to cut holes on steel, aluminum sheets etc. A well-organized box provides users with easy storage and transport, truly a must-have for DIY lovers and HVAC professionals. Size #1: 3/16" to 1/2" 6 Steps (3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'') #2: 1/8" to 1/2" 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'') #3: 1/4" to 3/4'' 9 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4") #4: 1/4" to 1-3/8" 10 Steps (1/4'', 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8") #5: 3/16" to 7/8" 12 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8")" Features 1. Laser marking makes the size more clear; 2. High speed steel for longer service life; 3. 50 workable size 4. Cobalt added reduces friction and lasts longer than those which does not contain cobalt bits; 5. The sharpness and titanium coating ensure easily cut through most sheet metal,plastic and some other materials with ease. Wide Applications The sharpness and titanium coating ensure that it could cut through most steel sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease. Package 5x Step Drill Bit Set 1x Aluminum Case    
Reseñas
D**.
Nice set of step drill bits.
So, this is a generic Chinese made step drill bit set. It comes in an aluminum box that has plastic corners and is ill fitted (as a box, but the foam inserts fit the drill bits fine). 1 star off for the quality of the box.Other than that the bits fit nicely in my Jet drill press and were very smooth through wood. I have not had a chance to check this set through metal yet, but they should drill through sheet metal. The step worked well to provide a counter sink in the thin material, or could be used in combination with a conventional bit to provide a counter sink in thicker material. The shanks range from 1/2 to 3/8 in so it should fit in most hand drills, also pretty much any drill press is not going to have an issue. Over all the bits are well made for my purposes as I am a hobbiest and would not put professional strain on this. The way I see it though, step drills are notoriously hard to sharpen anyway, so why dump alot of money on this, for non-routine use.Overall this is a great set.
D**R
Decent inexpensive (partially complete) set
These are a great inexpensive set of step drill bits. You never know when you might need one and they are truly life saver for when you need one and you happen to have them! A must have for any toolbox.I dont like that they have not ncluded a long bit that doesn't have many steps. These are for holes that need to drill a hole in something that is thicker that the increment between steps on the other bits. I've run into situations before where even though I had multiple step bits, I still had to go out and buy one exact size drill bit because if I was to keep using the steel bits I did have, in order to get the hole the minimum diameter through the bottom of the hole, the top of the hole might be 1, 3 or even 3 steps larger and that's not exactly something you want to happen.Another downside that I've noticed so far is the case seems almost like an afterthought to these bits because the largest bit does not fit in the foam well at all. They should have made the case just a bit taller and wider and incorporate some more foam in order to accommodate all the bits accordingly to ensure to don't fall out as soon as you open the case or bounce around inside.But having a case is better than no case at all.So in all these might very well suffice for what you need, but they are not the have all end all for step bits as there are still a few styles that you'd need in order to have a complete set.
A**Y
Cheap chinese crop
All it took was single use. Two holes drilled in 1mm thick metal plate and a bit gets as dull as butter knife. Cheapest materials used. Nothing even close to titanium. Beware buyers!
P**D
Step bit review
It arrived within regular shipping time the case that they come in is a little janky but it's better than nothing as for the bits durability and performance tip seems to be a little dull but once it initially makes the whole it continues to widen the way it's supposed to. I have not broken any of these but I do not use it very often and when I do it's usually on aluminum
P**Y
Anxious to use.
Gift from my husband for my tool bag.
A**O
Nothing just that
I love it
M**S
Highly recommend
As an electrician these comes in very handy
O**N
Perfect
Good
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