Frontpage Deal

21-Piece DeWALT Black Oxide Coated HSS Twist Drill Bit Set

$16
$35.99
+102 Deal Score
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Update: This popular deal is still available.

Amazon has 21-Piece DeWALT Black Oxide Coated HSS Twist Drill Bit Set (‎DWA1181) on sale for $15.99. Shipping is free with Prime or orders $25 or more.

Thanks to Community Member dwb2688 for finding this deal.

About this product:
  • Ideal for general-purpose drilling materials like metal, hardwood, softwood, PVC and fiberglass.
  • Parabolic flute design increases chip ejection in metal and wood drilling applications.
  • Black oxide coating helps resist corrosion and increase durability, so your drill bits last longer
  • 135° Split-point tips drill on contact and prevents walking on the hard surface you're working on
  • 31° Helix reduces over aggressiveness of true parabolic flute, making it ideal for drilling deep holes

Editor's Notes & Price Research

Written by
  • About this deal:
    • This deal is $19.90 lower (55.4% savings) than the retail list price of $35.89.
    • Refer to the forum thread for additional details and discussion.
  • Ratings & Reviews:
    • This set has a 4.8 out of 5 star rating based on 857 customer reviews on Amazon.
  • About this store:
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Edited July 10, 2022 at 03:18 AM by
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Created 06-26-2022 at 01:34 AM by dwb2688
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Questions & Answers BETA
lepa71 asked this question on 06-27-2022 at 12:28 PM
06-27-2022 at 12:28 PM
.
The titanium is just a coating.... it helps a little with chip removal when dry drilling (no oil), but not the actual cutting. If you look at the cutting tip, it is gone almost immediately. The main upgrade for the consumer would be cobalt 35 and then 42 as the better.
Chhannu asked this question on 06-28-2022 at 08:32 AM
07-14-2022 at 02:26 PM
Yes. These Drill bits will be compatible with just about any modern hand held drill. I plan on using these bits with a Rigid Cordless drill myself, so Ryobi cordless should be no problem.
dreamliners_7e7 asked this question on 07-26-2022 at 09:30 AM
07-26-2022 at 11:49 AM
Will work with any drill/driver but I wouldn't use them with a hammer drill.

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.
The titanium is just a coating.... it helps a little with chip removal when dry drilling (no oil), but not the actual cutting. If you look at the cutting tip, it is gone almost immediately. The main upgrade for the consumer would be cobalt 35 and then 42 as the better.
Nice set.

The 14 piece [amazon.com] is also on sale if you don't need a larger set.
.
The OP set has several duplicates of smaller bits that perhaps some may find useful. For me, the savings is in the larger bits; the 5/16", 3/8" and especially the 1/2" that may cost the $10 at a box store [lowes.com] by itself.

That said, I don't care for the reduced shank on the larger... which is where they break when drilling thicker steel and they catch. Most every drill today seems to have a 1/2" chuck, so no reason to reduce the shank to then grind three flats. Bosch [amazon.com] does similar with some of their sets.... but their Cobalt 42 bits are good bits.

It is not the end of the world, as you just grind the break flat and have a shorter drill bit. Smilie

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#3
Nice set.

The 14 piece [amazon.com] is also on sale if you don't need a larger set.
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#4
Quote from socal1 :
Nice set.

The 14 piece [amazon.com] is also on sale if you don't need a larger set.
.
The OP set has several duplicates of smaller bits that perhaps some may find useful. For me, the savings is in the larger bits; the 5/16", 3/8" and especially the 1/2" that may cost the $10 at a box store [lowes.com] by itself.

That said, I don't care for the reduced shank on the larger... which is where they break when drilling thicker steel and they catch. Most every drill today seems to have a 1/2" chuck, so no reason to reduce the shank to then grind three flats. Bosch [amazon.com] does similar with some of their sets.... but their Cobalt 42 bits are good bits.

It is not the end of the world, as you just grind the break flat and have a shorter drill bit. Smilie
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#5
Is titanium set better?
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#6
Quote from lepa71 :
Is titanium set better?
.
The titanium is just a coating.... it helps a little with chip removal when dry drilling (no oil), but not the actual cutting. If you look at the cutting tip, it is gone almost immediately. The main upgrade for the consumer would be cobalt 35 and then 42 as the better.
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#7
Quote from ToolDeals :
.
The OP set has several duplicates of smaller bits that perhaps some may find useful. For me, the savings is in the larger bits; the 5/16", 3/8" and especially the 1/2" that may cost the $10 at a box store [lowes.com] by itself.

That said, I don't care for the reduced shank on the larger... which is where they break when drilling thicker steel and they catch. Most every drill today seems to have a 1/2" chuck, so no reason to reduce the shank to then grind three flats. Bosch [amazon.com] does similar with some of their sets.... but their Cobalt 42 bits are good bits.

It is not the end of the world, as you just grind the break flat and have a shorter drill bit. Smilie
I was going to pass but then you made me look at the sizes again. I use this set when I need the perfect size, otherwise Harbor Freight bit set is cheaper when you have to burn though several bits.
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#8
It's always great to have a cheap set of bits though. But the Dewalt/Makita/Milwaukee/Bosch (tool brand bits) are overpriced as disposables go.

Just buy the $10 HF 29pc special for Disposable bits, as they tend to hold up better than the Box Store brands.

And, if you get tired of junky bits, step it up to WoodOwl (for wood obviously) and Nordic/Viking (for metal and wood.) It's nice to have a big set, but it's pricey. So, buy the 3/6/12pc envelopes from Viking, in the sizes you'll use most, and once you try them, you'll see there is a vast difference.
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#9
I'm not sure I buy the idea of bits being anything but a disposable item. I'm sure any new bit will be better than a used premium bit.
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#10
Quote from stompylee :
I was going to pass but then you made me look at the sizes again. I use this set when I need the perfect size, otherwise Harbor Freight bit set is cheaper when you have to burn though several bits.
.
I watched Todd on Project Farm do a comparison and having used, these DeWalt bits are decent bits. Actually, one of the few 'bits' they make that are decent for the sale price money, as their impact drive bits have been kind of junk in comparison to other box store brands like the better Makita or Milwaukee impact drive bits.

Harbor Freight makes some decent cobalt drill bits, but their best is only M35. I have bought their 115pc sets mainly for the Index boxes, but the M35 cobalt for around $100 was decent and the 115 pc black HSS set for like $30 with a coupon was worth the money after sharpening a few of them. I was pretty certain the Index was worth the $30 as I needed it next to a new drill press.

Each winter, we have a few gallons of used bits to sharpen. I did buy a DrillDoctor 750x a few years ago and for 135 split point drill bits, it does a good job if you will use the finer diamond grit wheel to finish and don't get them too hot... a water coolant would be awesome. With the ability to hand sharpen, you know if it is sharp or not, but be careful not to mess with the tempering. Don't rush it and it works well.

Personally, I like Triumph or Hanson because we have been a dealer for a couple decades and wholesale they are reasonable with decent quality. For certain, the value in the OP is the larger bits, but watch for a Bosch M42 cobalt deal that comes around once in awhile.
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#11
Quote from IncompletePerfect :
It's always great to have a cheap set of bits though. But the Dewalt/Makita/Milwaukee/Bosch (tool brand bits) are overpriced as disposables go.

Just buy the $10 HF 29pc special for Disposable bits, as they tend to hold up better than the Box Store brands.

And, if you get tired of junky bits, step it up to WoodOwl (for wood obviously) and Nordic/Viking (for metal and wood.) It's nice to have a big set, but it's pricey. So, buy the 3/6/12pc envelopes from Viking, in the sizes you'll use most, and once you try them, you'll see there is a vast difference.
.
Sold locally by Fastenal, Viking makes good bits for a price, but if precision size is important, you might want to buy their SP bits that tighten the tolerance and chosen from those manufactured. Perhaps you can guess where those that are outside that tolerance go, but granted, also for less money and within the tolerances of many imports.

When it comes to Viking specifications, they always quote NAS 907B which is quite vague as far as materials used. In fact, 907B includes HSS. Granted, Viking does say "Premium Hi-Molybdenum Steel" (no percentage) and while they are quality bits, I am not sure they are worth 10 times as much as with their Ultra Bor Super Premium (nitro-carburize finished).

Those are government prices... lol

Also know they do not manufacture everything they sell and some items are not made in the USA. I kind of expect some of their Index boxes fall into that category because some are junk.




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#12
Quote from jigga_what :
I'm not sure I buy the idea of bits being anything but a disposable item. I'm sure any new bit will be better than a used premium bit.
.
Drill bits are typically disposable items, but some sellers like Matco, Drill Hog, etc., will replace if your break one. I used to think it was because of the premium price charged, but even higher premium priced like Viking states drill bits are disposable and will not be replaced.

Breakage is one thing and dull is another. It is like many saw blades are cheap enough that it is not affordable to hire them resharpened. Many drill bits fall into same category. But, if one would learn to resharpen, they are no longer always disposable.

PS: Not sure who the insecure clown leaving negatives without commenting is, but they must have a miserable life.
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#13
If you're going to be drilling metal, don't forget to use some cutting oil. It helps cool your bits so they stay sharp. I use Oatey but heard of lots of good stuff bout Tap Magic. Some say WD-40 could work in a pinch but I've never tried.
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#14
i used to buy bits whenever i found a deal because they would dull.
since i bought a Spyder Mach Blue set... haven't needed any other.
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#15
As a typical home owner, i only buy the on sale drill bits like this or harbor freight. I may sporadically go through a set per year on random stuff.

$10 for set vs $10 for a single bit. I'll take the cheap set at Day- as I'll get several uses out of each bit until it breaks or dulls unless I'm drilling through metal.

Oh and i have never bought any special lubricant for drilling. Wd40 and even vegetable oil works well enough, as long as you clean it off when done. I don't drill through metal often.
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Last edited by fun4stuff June 26, 2022 at 05:45 PM.
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