That is that new right angle drill bit that I have been hearing about.




Looking closely at this one, it appears as if the cutting edge was cut flat, then twisted.
Look at the positive side. At least they were so ductile they won't shatter and fling sharpnel across the shop.![]()
+10 charactersA few years ago I bought a nice Cobalt bit set. Cost me well over $200. The FIRST hole I go to drill in some 1/4 mild steel I snapped 3 bits.
Back to the store those went!
you misused the drill bit
it is only for drilling into chineese steel
bob



Looking closely at this one, it appears as if the cutting edge was cut flat, then twisted.

http://www.garagejournal.com/forum/showthread.php?t=43249
I posted the following just the other day regarding cheap drill bits, please see my thoughts below. You can find the same post in the thread above ^^^^^
All right, remember this lesson. "I will not buy cutting tools, bit, taps & dies, lathe cutters end mills, easy outs, bandsaw blades, hack saw blades, or even sand paper from Harbor Freight." Now, before anyone thinks I am pooping on HF parade, I am not. I have some tools from Harbor Freight that have performed flawlessly through the years for me, and I would and do highly reccommend those tools. Cutters and abrasives are not part of those materials. Never ever buy these supplies from HF or you will either F up what you are working on, or injure yourself. Leave cheap cutters alone and buy only quality cutting tools. Even used and re-sharpened cutters are vastly superior to any cheap or budget priced cutters. You can even skimp on the drill or drill press or other such machine that drives the cutter, but never the cutter. Buy the very best you can afford. Cheap will always perform to it's standard of quality, particularly in cutting tools and abrasives, there is zero room for **** there.
BTW: That also includes Northern, Enco, MSC, Travers, Grainger etc. cheap **** is cheap ****, it will not matter who sold it to you.
Stick with the better known brands such as Norseman, Greenfield, Cleveland, Triumph, and several others I should have here that are escaping my ol memory at this moment.

... I never had any luck drilling through steel, with anything but quality cobalt bits.....
If you guys ever want to get some serious drill bits, get MORSE.![]()
That is very true, high quality to be sure.![]()
Really? That's such an odd statement. Are you sure you're drilling with the pointy end?
Someone earlier in the thread mentioned cleveland and greenfield. These brands are chinese owned as of a few months ago, and quality is sure to go down as the new owners close the factories (this is either in progress or done) and move all the production to their factories in china.

That is operator error, cobalt shatters if you do not use them correctly using them in a had drill is a big no no unless you can hold it as well as a drill press.
Someone earlier in the thread mentioned cleveland and greenfield. These brands are chinese owned as of a few months ago, and quality is sure to go down as the new owners close the factories (this is either in progress or done) and move all the production to their factories in china.
Cleveland and IPG aren't Kennametal companies any more?
http://www.kennametal.com/en-US/products_services/metalworking/brands/Cleveland_brands_page.jhtml
Most of the time I am drilling 10.9 grade bolts out of auto suspensions, in these cases, anything but cobalt ****. With steel stock on a drill press, less than cobalt would probably work fine. With good cobalt bits, some oil, and a slow drill, I get nice long pieces of steel as I drill, they really cut through. The titanium coated ones go dull too quick.
Get your self some center drills, start you holes with them then drill with a good HSS but machine length is best. Try to run you hand drill at the slowest speed and give the bits some lube you will be amazed at how much better you can cut though hard steel like butter.
Nope. They were sold to something called "Top Eastern Drill Co" in china. I have posted about this a few times on the forum.
http://www.kennametal.com/en-US/com...l;jsessionid=LJEGFKFEAZKWDLAUCYOSFEVMCQFB0IV0