Just bent a drill bit

[dstig1]

Drill bits are hardened and break - they don't bend. You don't have actual drill bits there, they just look like it... Never seen a drill bit bend like that without breaking.

 

[CharlieS]

............... Before I could hit the off button on the stand drill................

On another and more serious note, this is a good example of why one should use a foot switch on some tools. Just sayin.......

 

[moored4]

Drill bits are hardened and break - they don't bend. You don't have actual drill bits there, they just look like it... Never seen a drill bit bend like that without breaking.

X2 - 40 years a millwright and never saw it happen. Thanks China!

 

[Willl]

"Just bent a drill bit"

Don't ya mean "Just 'broke' a drill bit" ? :laughing:

 

[Sutol]

Just like to point out that my bent drill bit has done a lot of work in the past year that I have owned the set. (british made btw)

Also that my bent drill bit did drill an inch deep hole into a hardened steel ball bearing which my other drill bits would not even scratch.

You will notice that the end of the bit has snapped off leaving the peice inside the ball.

Probably my fault for not securing the ball before drilling but hey...it did the job and I'll get a brand new drill bit to replace it.
The drill bit was dragged out of shape by the ball spinning out of true on the end of it after the bit snagged and jammed in the ball.
I can only think that the bit was so hot that its shaft was softened allowing it to deform after the hardened cutting edge had snapped off.

Unless anyone has a better explanation:anyone:

 

[SPYDERLK]

Just like to point out that my bent drill bit has done a lot of work in the past year that I have owned the set. (british made btw)

Also that my bent drill bit did drill an inch deep hole into a hardened steel ball bearing which my other drill bits would not even scratch.


I can only think that the bit was so hot that its shaft was softened allowing it to deform after the hardened cutting edge had snapped off.

Unless anyone has a better explanation:anyone:

Bound to have been a carbide tipped bit.
larry

 

[Short Game]

Guaranteed to bend or break as the situation requires. :confused2:

 

[forgeblast]

Just wondering what are the drill bits to avoid and which one are the good to best ones
for drilling metal (say steel, 1/8-1/4 thick).

 

[Craig Clayton]

To forgeblast
You should be able to buy good quality in PA. The good stuff is out there for the professional but so is the price in both countries. The trick is to get a balance between price quality and service. My Grandfather was a Tool and Die Maker and I have a collection of drills some more than 50 years old. But as in everything there is always a OOPSS FACTOR especially in a more powerful hand drill, it jams and your wrist twists.
If you buy the VERY VERY BEST set you could be drilling a door jam to plastic moulding or 1/4" steel. (OOPSS)

Craig Clayton

 

[deereman75]

Dormer drill bits are often thought of as some of the best.