Neiko 10052A Spot Weld Drill Bits, High Speed Cobalt Steel with Titanium Coating | 8mm (5/16-Inch)

These are great and super long- exactly what I needed!

I have a cordless, USB charged screwdriver with 1/4 hex head attachments that I keep in my desk drawer. I wanted to be able to drill pilot holes through thin materials (wood, 1/8" acrylic sheet) without going out to my garage and grabbing one of my larger drills and searching for drill bits (ADD roommate shares the tools in the garage and rarely puts the bits back in their slots).These bits worked wonderfully for my intended purpose. They securely fit into my cordless screwdriver and easily drilled through 1/8" acrylic sheet without cracking it. They also drilled into MDF easily. I've added these drill bits into the case that holds my cordless screwdriver and screw bits and I know this will save me a lot of time on my small projects in the future. It will also result in much less frustration with my roommate, at least in this regard. A definite win.

Nice quality. Worked will and very sharp. Went through two adjacent 2x6 boards like a knife through butter.

Good price and delivered on time

Good quality

Worked perfect for what I needed. I had a tight space. Used successfully to drill through boat fiberglass.

I'm kinda shocked. I totally expected these to be a throwaway set. I grabbed them shortly after a move, categorically-unable to figure out which box had my USA Drill and DrillHog bits, and in need of something quick. Amazon same-day'd em. Fair enough.But... I'll be damned if I can break the things, or even DULL em. I mean, not that I've been actively TRYING to or anything sadistic like that, but... I build fine furniture. I've prolly put 500+ holes in Maple, Red Oak, Sapele, Ash, and gods only know how much birch ply, and they're STILL going strong. I've thrown out DeWalt sets in less time.They're short (but hey, they DO call em stubby), but that just means they don't ever have enough torque on em to snap. They're brad-point (so wood ONLY), but that's cool by me; I'm a woodworker.They're HEX SHANK (and yeah, against all common sense and likely the manufacturers' warnings, I use them - frequently - in my impact driver), which is unheard of, but again: I suspect the "stubby" part is why I keep sweeping up sawdust and not shrapnel.I epoxied one of those little rubber bit holders to one of my DeWalt impact drivers and just use it - along with these bits - exclusively for pilot holes, which, if I'm totally honest, they're better at delivering than literally everything else I have, outside my braces and bits (and sometimes, you just need a hole. NOW).My ONLY complaint (which I didn't even dock a half star for) is that the little rubber bit holder they COME IN sucks. they fall out of it if you look at it sternly. But regarding the bits themselves? The absolute best feedback I can offer is this:HEY NEIKO! If you ever release a 10- 18- or 24-pack of these in the full gamut of sizes? I'll buy them in a hot second. Likewise, if you ever want someone to TEST em for you in real work-environment settings, you call me, you hear? I'll be delighted to give you the best analysis and feedback you've ever received from an end-user.

No you see, I can make a hole. Got plenty of drill bits for that. I need this hole right here to be bigger.Its right here. Yeah, you probably can't see it. because its so SMALL. I need to MAKE IT BIGGER.This is a dramatization of an event that has never happened. These things don't actually make your hole bigger. They don't even give you the illusion that the hole is bigger. I wanted to be honest in this day and age of penile enlargement products that will lie to you at 2am.These widen the head of the hold to accept the screwhead and make things nice and flush. But hey, if you are searching Amazon for "countersink drill bit" at 2am (and not that other product) then who am I to explain to you their purpose. You already know, but how do these work?They work well. Granted, I have been using them primarily in baltic birch and purebond ply, and some popular and now walnut (nothing to spike the Janka scale, mind you) but these carve their little pockets like diamond.I'm into these for a few months now, with... let's call it 600 countersinks and they are still producing clean, round sinkholes with no discernible tear-out and you get more tear-out in ply than you will a hardwood on this.So if its 2am where you are and you looking for a little more zing in your thing... and by that I mean flush joints and seamless screwpoints, then you could do a lot worse that these little beauties for the money.