To avoid these ads, REGISTER NOW!

left handed bits

RAMBIN

Well-known member
Joined
Jan 5, 2006
Messages
133
Location
canada
ive been needing a set of left handed bits for removing broken damaged screws/bolts forever...havnt seen any locally...so I checked amazon, most of what I seen is neiko? kinda leary as I hear its harbour freights house brand. anyone got any input, these are just for occasional personal garage use, so im not looking to spend a fortune, but If I do break one I'd like to be able to replace it without buying a whole set!
 
To avoid these ads, REGISTER NOW!

cgrutt

Well-known member
Joined
Mar 4, 2016
Messages
8,259
McMasters sells them individually. I just bought a few about a month ago and needed one just yesterday!
 
OP
R

RAMBIN

Well-known member
Joined
Jan 5, 2006
Messages
133
Location
canada
was thinking a small set of common sizes and just replace em indivi if they snap... it happens! what brand? usually sets are more reasonable then individual bits
 

cgrutt

Well-known member
Joined
Mar 4, 2016
Messages
8,259
Sorry, I got the impression you were just looking for a few different sizes. McMasters sells sets as well but they're pricey - about $190 for wire gauge set and $350 for 1/16" - 1/2" (by 64ths). I'm not sure what brand they are but the ones I received seemed to be good quality. More info here:

http://www.mcmaster.com/#left-hand-drill-bits/=124el20

I'm sure you can get smaller sets cheaper. Not sure where though...
 

RedneckWelder

Well-known member
Joined
Nov 12, 2013
Messages
5,703
Location
The Ghetto Kingdom of Methlandia
ive been needing a set of left handed bits for removing broken damaged screws/bolts forever...havnt seen any locally...so I checked amazon, most of what I seen is neiko? kinda leary as I hear its harbour freights house brand. anyone got any input, these are just for occasional personal garage use, so im not looking to spend a fortune, but If I do break one I'd like to be able to replace it without buying a whole set!

Harbor Freight and Neiko are not connected as far as I know but they probably sell some of the same stuff.

I can tell you from experience the HF left hand drills (set is like $8) ain't worth ****. They dull immediately.

I have a small set of the Irwins which have been pretty decent for the money. Like $30 for a set of 5 with extractors. I think they make other sets too. Other sets from quality makers aren't cheap- a set to match a 29 piece drill index is very pricey.
 
OP
R

RAMBIN

Well-known member
Joined
Jan 5, 2006
Messages
133
Location
canada
ya I cant see the need for a large indexed set, most easy outs are tapered to work with a few common size bits.. a small set say 6 or so would be great, amazon has those irwins but I wasn't sure how great they would be...vice grips are about the only great thing Irwin ever made
 
To avoid these ads, REGISTER NOW!

Finky198

Well-known member
Joined
Feb 25, 2014
Messages
2,120
Location
North East
Harbor Freight and Neiko are not connected as far as I know but they probably sell some of the same stuff.

I can tell you from experience the HF left hand drills (set is like $8) ain't worth ****. They dull immediately.

I have a small set of the Irwins which have been pretty decent for the money. Like $30 for a set of 5 with extractors. I think they make other sets too. Other sets from quality makers aren't cheap- a set to match a 29 piece drill index is very pricey.

I have to disagree with this the HF set are small and work Perfectly fine. Maybe not on a grade 8 or 10.9 fastner, but on small fittings and bolts (upto 3/8 and 10mm) I have had excellent success. :dunno: ive broken one bit in 3 years of use... all said and done I think yes there are better options but for 8 bucks if they work for small stuff im fine with that and anything larger I can buy bits as the need arises. ( and i do tons of broken bolt repairs)
 
Last edited:

ChevyEFI

Well-known member
Joined
Sep 2, 2012
Messages
8,729
Location
Phoenix, AZ
I haven't had any bad luck w/ the HF 13pc LH set, but I've mostly used it to open holes up to size. Not sure how well they would do on bolt removal, without a sharpening. No blatant dulling and no breakage though.
 

Katodog

Well-known member
Joined
Mar 23, 2014
Messages
737
Location
Carol Stream Illinois
I've always been curious about left-handed drill bits for extractors...must be me but I can't see the different in a left-handed hole versus a right-handed one. The extractor doesn't give a **** about which way the hole was drilled either, you tap it in so it bites, then you run the screw out.

The only ting a left-handed drill bit will do is possibly heat and bite the screw, loosening it or removing it, so you won't need an extractor.


There is no logic in left- or right-handed drill bits. Sorry, been doing this **** for over 30 years and have never used a left-handed drill bits with extractors. Don't see the need or the logic, but if anybody wants to educate me, I love to learn new things.
 

ritestuff

Well-known member
Joined
Jul 9, 2015
Messages
114
Location
Little Rhody
I've always been curious about left-handed drill bits for extractors...must be me but I can't see the different in a left-handed hole versus a right-handed one. The extractor doesn't give a **** about which way the hole was drilled either, you tap it in so it bites, then you run the screw out.

The only ting a left-handed drill bit will do is possibly heat and bite the screw, loosening it or removing it, so you won't need an extractor.


There is no logic in left- or right-handed drill bits. Sorry, been doing this **** for over 30 years and have never used a left-handed drill bits with extractors. Don't see the need or the logic, but if anybody wants to educate me, I love to learn new things.


I think you nailed it yourself. When you use a R/H bit to drill a busted stud, you have a 0% chance of the fastener breaking loose while drilling it, If you use a L/H bit, you have at least a small chance that it will hook up and spin it out, probably .001%. It's basically flingin' **** against the wall and hoping for a piece to stick every once in a while.
 

cgrutt

Well-known member
Joined
Mar 4, 2016
Messages
8,259
I've always been curious about left-handed drill bits for extractors...must be me but I can't see the different in a left-handed hole versus a right-handed one. The extractor doesn't give a **** about which way the hole was drilled either, you tap it in so it bites, then you run the screw out.

The only ting a left-handed drill bit will do is possibly heat and bite the screw, loosening it or removing it, so you won't need an extractor.


There is no logic in left- or right-handed drill bits. Sorry, been doing this **** for over 30 years and have never used a left-handed drill bits with extractors. Don't see the need or the logic, but if anybody wants to educate me, I love to learn new things.


They're used to prevent driving a broken screw or bolt further down into a through hole and falling off into something causing a bigger problem. Not really on point but think of a broken spark plug. If you used a right hand bit it could drive the broken part into the cylinder requiring the whole engine to be dismantled to retrieve it. Using a left twist, the worst that could happen is it catches and spins itself out.
 
To avoid these ads, REGISTER NOW!
Top Bottom