Drill bits: What are Dewalt Black and Gold bits?

[JEDI]

DEWALT Black and Gold Drill Bit Set (14-Piece) DWA1184 - The Home Depot

Tired of drill bits that dull quickly and snap under the slightest pressure? Then step up to DEWALT Black Oxide Drill Bits. These industrial-grade twist-drill bits are cut from super-hard, resilient black

www.homedepot.com

description says coated black oxide.
coated with what?

is it better than titanium coated?

 

[bbhaag]

I think black oxide is just another type of iron ore. A quick google search suggests that it has some anti corrosive properties but is usually just an appearance package type of thing used to coat products to give them a higher end look.

If you're looking for some good drill bits I've always been partial to Irwin or Bosch products. Yeah they aren't the best out there but for me anyway they always seem to bridge the gap between quality, reliability, and cost. Local availability is pretty good to but of course that varies depending on were you are located.

 

[bfun_x1]

I think black oxide just prevents corrosion. The gold is supposed to reduce friction. Titanium is supposed to be harder, but if you plan to drill through steel, get some cobalt bits.

 

[WharffRat]

I got that same set.
The price was right and I needed an all purpose bit set for my drill.
Just for standard household use.

 

[mindless1]

"Better" depends on your needs. Black oxide resists rust, and that keeps the cutting edge sharper and aids in chip removal, but titanium is better for being a harder coating, if you need to cut a "little" harder materials. Titanium is worse for being more expensive if you are only drilling soft materials.

If you never work with metals harder than aluminum, the titanium can improve the bit life some, but otherwise the black oxide for softer material use then cobalt for hard is the best way to split up the budget, unless drilling a lot of hardened metal then skip the cobalt and go for carbide.

If you only need to *Make a hole* that set should do fine, but personally I would want a larger set with less difference between each size. It's a bit (pun intended) crazy that they don't even list the sizes, but visually it is obvious they make pretty significant size steps.

 

[jmagg]

I went with the Milwaukee Titanium set for a secret santa gift. I chose them for the quarter inch shank, which will keep the smaller sizes from spinning in the chuck, but will probably break easier if the bit binds.

 

[JEDI]

n/m

 

[Entangled]

DEWALT Black and Gold Drill Bit Set (14-Piece) DWA1184 - The Home Depot

Tired of drill bits that dull quickly and snap under the slightest pressure? Then step up to DEWALT Black Oxide Drill Bits. These industrial-grade twist-drill bits are cut from super-hard, resilient black

www.homedepot.com

description says coated black oxide.
coated with what?

is it better than titanium coated?

Black oxide is merely a rust coating which adds nothing to the hardness of the bit so it is a sham. I just bought a Milwaukee Titanium coated bit set and it is complete garbage, taking it back to the depot.

If you are drilling metal either carbide tipped or Cobalt coated is best

 

[jmagg]

Black oxide is merely a rust coating which adds nothing to the hardness of the bit so it is a sham. I just bought a Milwaukee Titanium coated bit set and it is complete garbage, taking it back to the depot.

If you are drilling metal either carbide tipped or Cobalt coated is best

Yea even tho a secret santa gift, im thinking return. Just substituted to these
https://www.amazon.com/gp/product/B0000EI9AZ/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

 

[Entangled]

Yea even tho a secret santa gift, im thinking return. Just substituted to these
https://www.amazon.com/gp/product/B0000EI9AZ/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

I keep different sets, I keep the expensive ones for last and use the cheap santa sets as you call them for the easy jobs as they will drill soft wood and sheetrock just fine and for 10 or 15 dollars when they wear you toss them better yet if they work then your expensive bits do not get unnecessary wear. The thing to remember is if you are drilling metal then you need bits harder than the metal being drilled. I just made a custom bracket out of the handle of an old putty knife and the Titanium on the brand new Milwaukee bit didn't have a chance against the tempered steel of the knife. No guy can have too many drill bits.

 

[bigi]

Project Farm on utube did drill bit tests. I believe those were the best cheap set. I got 2 and those have been working great so far.

 

[JEDI]

Project Farm on utube did drill bit tests. I believe those were the best cheap set. I got 2 and those have been working great so far.

saw the video.

for hardened steel, only 3 brands made it with the initial set up:
Craftsman Gold Oxide ($11) , Dewalt black oxide ($15), and Bosch colbalt ($40)

unfortunately for Craftsman, the hole didnt have a smooth finish.

best bang for the buck was the 14piece (including 1/2" bit) Dewalt Black Oxide $15 @ home depot.
wish he also tested the Dewalt Titanium.

and wish he would update the test with the new Dewalt Black and Gold

 

[Leymenaide]

Funny that I just noticed a used black oxide bit covered in rust on my work bench. Lots of humidity hear to the point of days when everything in my garage is covered by moisture. I don't cry at $10-15 per set use and throw away. Nothing lasts forever.

 

[mindless1]

^ I would try harder to reduce humidity or coat tools with oil, wax, or paint where possible, though cheap drill bits are the least of the loss in that environment. You can't very well open and coat all motors, electronics, mechanisms, etc with a protective coating, though you can store them in air-tight containers but what a hassle to have to open separate containers for every tool used.

Back to drill bits, coat them in oil. They'll last longer from the lubrication even if they weren't rusting otherwise.