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Left Hand Drillbits #5438885 05/25/20 10:32 PM
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Snagglefoot Offline OP
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Finally got around to buying a set of left hand drill bits, handy to start drilling out a bolt and in hope it comes free, or as a way to start a hole for an Easy Out tool. Funny there were no markings on the case to indicate they were left hand. Might make a good gag gift for someone you know. laugh

Amazon.com. Left hand drill bits.

4329DF15-DA20-4A56-B296-EF474FA387E2.jpeg
Last edited by Snagglefoot; 05/25/20 10:46 PM.

If you want the job done right......do it yourself.
Re: Left Hand Drillbits [Re: Snagglefoot] #5438887 05/25/20 10:37 PM
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Chris142 Offline
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They will not work in a chuck that is only tightened by hand. They loosen the grip.

Last edited by Chris142; 05/25/20 10:37 PM.

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Re: Left Hand Drillbits [Re: Snagglefoot] #5438891 05/25/20 10:40 PM
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Blkstanger Online Content
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I have had great success using them on broken bolts.


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Re: Left Hand Drillbits [Re: Snagglefoot] #5438933 05/26/20 12:51 AM
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Silk Offline
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I guess people these days don't sharpen drills by hand, but sharpening a left hand drill requires some serious thought processes, and that's not enough to overcome years of sharpening right hand drill bits.


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Re: Left Hand Drillbits [Re: Silk] #5439090 05/26/20 07:51 AM
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Cujet Offline
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Originally Posted by Silk
I guess people these days don't sharpen drills by hand, but sharpening a left hand drill requires some serious thought processes, and that's not enough to overcome years of sharpening right hand drill bits.


So true! However, a DIY sharpening job on a LH drill bit can be ground (sharp and different angle) for aggressive bite. This helps a lot with stuck bolt removal.


People who count on their fingers should maintain a discreet silence.
Re: Left Hand Drillbits [Re: Snagglefoot] #5439671 05/26/20 07:56 PM
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HangFire Offline
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That's a great start, I have a set like that, that has gotten me out of several jams. Since then, I've added stubby cobalt LH bits, and a right angle air drill with a Jacobs keyed chuck.

As for the hand tightening chucks, it CAN work... at least for a minute or two at a time... as long as the chuck is fresh, and NOTHING touches it while you use it.


Various musings: http://hangfire.net
Re: Left Hand Drillbits [Re: Snagglefoot] #5440685 05/28/20 07:35 AM
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Trav Offline
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Originally Posted by Snagglefoot
Finally got around to buying a set of left hand drill bits, handy to start drilling out a bolt and in hope it comes free, or as a way to start a hole for an Easy Out tool. Funny there were no markings on the case to indicate they were left hand. Might make a good gag gift for someone you know. laugh

Amazon.com. Left hand drill bits.


Stating the obvious but unless you have a direct drive drill press with reverse its a hand held drill bit only.


ASE L1, Master. Deutsch Meisterbrief.
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