Kodiak Cutting Tools KCT140270 USA Made Solid Carbide Drill Bit, 2 Straight Flute, 3/4" Length of Cut, 2" Overall Length, 1/8" Diameter

Note that this was used in a non-standard, non-recommended application.Snapped a standard (HSS) drill bit while trying to remove a broken M6 bolt from an automotive serpentine belt assembly. Bolt was in an access-restricted area with only about 8 inches of clearance. Tried to use Dewalt cobalt drill bits to drill out the broken drill bit, but the cobalt bits basically turned to mince meat. Ordered this KCT bit, and it literally went through everything (the broken drill bit, the broken bolt, and part of an aluminum bracket-- all at once) like they were cheap plastic. I've never used a solid carbide bit before, so I was in utter shock.I knew before purchase that you're not supposed to use carbide bits with hand drills because the bits are so brittle. Having said that, I used a hand drill and as a consequence the bit's tip did become chipped, but I'm OK with that. The $20 I paid for this bit is well worth my sanity and time, and I'd buy another for the same purpose if needed. Absolute life saver.

I bought this type of Carbide drill because it's stronger than your conventional drill shape. I've had good luck with these types of carbide drills at work since I am a Toolmaker/Machinist. I bought this one for home use because of the reviews and BOY.....am I glad I did. I had a broken off 1/8" hardened dowel pin in the heat treated column of a micro drill press. It was broken off just below flush and I wanted to get it out and tap it for #8-32 machine screw used as a safety down stop.I chucked it up in an old small bench top drill press and checked it for run out. I got it to run within a couple of thousands then ran the drill press at full speed....estimated to be around 1500 RPM. The shaft was in a vice for rigidity. CAN'T BELIEVE HOW IT ATE THRU THAT DOWEL PIN. The center of a dowel pin is 48-58 Rockwell C and the outside is a minimum of 60 Rockwell C. Very,very hard. That is the ultimate test for a carbide drill bit. When it got to the bottom of the dowel pin....the rest of it started to spin and jammed the spindle stalling the drill press WITHOUT BREAKING THE DRILL BIT !!! HOLY SH-- BATMAN !! I'm sold !! I turned off the press and withdrew the drill bit....mission accomplished. Drill bit is still good to go ! This is a TOP NOTCH QUALITY carbide bit. JUST BUY IT !!!

a person named ken cofell commented about these being junk because they broke. As a machinist, ignore him completely. These bits aren't made to be used in anything but a mill, a drill press, the tailstock of a lathe or any other rigid holding device with a mechanical feed (no hand drill). These bits can cut through hardened steel and are often used to remove drill bits from steel if they have snapped. These bits are good, but i don't have the technology or the initiative to snap it in half to analyze the carbide and tell you exactly how good they really are. It's 15 bucks and solid carbide. Just buy it if you need a bit that will cut anything short of diamond.

I purchased the 1/8" straight flute to drill out a broken bolt for a skid plate on a pickup. It worked very well. I had a small pilot started with a regular drill bit started, then went with the Kodiak straight flute. It took a little bit to get going, but once is started cutting and burring it went very well; better than any drill bit I tried, including a cobalt bit. I was able to get an extractor inside the broken end pretty easily once i had a deep enough hole with the straight flue. I think finding the proper drill speed is key. Very good tool; won't be loaning it out for fear it may not return! Kodiak Cutting Tools KCT140270 USA Made Solid Carbide Drill Bit, 2 Straight Flute, 3/4" Length of Cut, 2" Overall Length, 1/8" Diameter Bob

I read the previous reviews, but was skeptical. Not any more!!!!!! I am almost 70 years old, and a seasoned veteran of many, many DIY projects. Nothing I have ever owned worked so flawlessly drilling a hole. On my current project I had already broken and chipped several cobalt and "carbide tipped" bits. I was "averaging" about one hole per bit drilling on 'common' steel angle which had become hardened by welding on it. Out of desperation ordered a 1/8 and 1/4 bit from Kodiac and am so glad I did. Drilled the remaining 23 holes with absolutely no problem. Drilled the 1/8 pilot first followed by 1/4. USE CUTTING OIL! Moderate pressure, and keep your rotation speed in the 400-600 rpm range....and just watch the chips come out. Amazing bits. I want a whole set! Can't think of enough good things to say! Made in America! No Chineese crap!

This bit saved me after a tool broke off. Worth every penny compared to paying someone else to extract the tool.I do suggest buying two if this is why you need it. These bits are inherently brittle. Not having a steady hand and platform may cause the bit to skip. If that happens, it may break.Another warning is that you won't find anything else you can buy that will drill through this with, so do your homework before you start drilling.

AAAAAMMMMAZING. I broke two extractors off in a spindle trying to remove a broke bolt. Thought I was done and would have to replace the spindle. This bit chewed thru the extractors and spit them out leaving me with room to work some new threads and save the spindle. Now I bought a back up since these bits can be damaged if not used correctly and I rather have a back up ready to go if I ever run into another situation where I need this magically piece of save my ass.

Part of my job is to render old hard drives from customers useless for recovering their data. One method of doing this is to drill holes into the rotating disks of a disk drive (and controller ICs). It's surprising how hard a hard drive's disks can be. They'll blow out regular drill bits in no time. This bit does the trick.