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

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

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.

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.

Very brittle so go slow and not allot of pressure on the drill bit.

I had to drill the broken stub of a hardened bolt so I could use an E-Z Out to remove it. HSS and cobalt drills would only scratch the surface and burn up. I used this drill in a drill press with cutting oil and moderate pressure at 430 rpm and it went though easily. Made in America.

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.

Wish it was better than a one star review, but these bits are terrible. The bit I had before these lasted a couple hundred holes easy. These bits, one broke during the first hole, the other 4...combined 5 bits got me 20 holes.

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!