screwdriver socket for grinder slits?

[mrjaw14]

I am looking for a special application tool. I work on some old rusty **** sometimes. It's often necessary to take a cutoff wheel and make a slit in the top of a bolt that's completely rounded, or something like a carriage bolt that's spinning freely in rotten wood.

I need what I can only describe as a bit flat head socket that will be used on an impact or that can take impacting.

I had a bit that was hex shaped that fit down in a socket that had a 1/2" blade width, but I shattered it today on a rusty carriage bolt. It is bigger than a 5/16 impact bit and smaller than a drag link socket.

Does anyone make something that engages a cutoff wheel slit well that can stand up to some abuse? This shattered after three carriage bolts. has no markings, so I have no idea who made it. It's got ball detentes that go in a socket, which was nice. Pen for size reference

 

[txvwnut]

Try to find bits for a hand impact driver.

 

[3baygarage]

That bit would have come with an old hex drive socket set like Indestro brand.

You might only find 1/4 and 5/16 shank on the new market, idk.

 

[The Cobbler]

Try to find bits for a hand impact driver.

they are 5/16. OP said it was larger than that

 

[mrjaw14]

Yea, the one I had was closer to 1/2. Really odd size

 

[Stooge]

Would a drag link socket fit the bill? depending on the size of whatever it is your trying to extract, it might need to be ground down a bit, but could be a good starting point.

 

[kinglake]

I watch a lot of wooden boat building videos on Youtube. For some reason, they appear to only use flathead screws, and on occasion really big ones at that. I've seen two different builders make their own bits. In both cases they did so with a grinder ironically.

Would it be possible to maybe start with a 1/2 impact extension, then grind it down to a bit?

 

[1982fxr]

Drag link impact socket?

 

[gigamel]

WERA makes 7/16" hex hand impact bits (2110 S) - They also have 3/8" (2097 S) and 1/2" (2210 S) bits.

A 2110 S 1.5x13mm is close.

 

[gigamel]

Found it! - I knew I had one somewhere - they are for real



Same from Apex, but longer



https://apexbits.com/321-UX-Apex-7-16-Slotted-Power-Drive-Bits-Only.aspx

 

[Doug Arthurs]

My Tekton hand impact came with slotted bits

 

[metaldad]

Found it! - I knew I had one somewhere - they are for real



Same from Apex, but longer



https://apexbits.com/321-UX-Apex-7-16-Slotted-Power-Drive-Bits-Only.aspx

i thought those were rare as hens teeth.
as a sidenote, a b/d screwdriver i acquired that uses that bit

 

[rlitman]

Found it! - I knew I had one somewhere - they are for real



Same from Apex, but longer



https://apexbits.com/321-UX-Apex-7-16-Slotted-Power-Drive-Bits-Only.aspx

I mean, I get that it's what the OP is asking for, but think about this.
How much metal was displaced when the fastener rounded off? Now, how much metal is in the tip of that bit?

I will admit to cutting slots into broken fasteners in desperation, but I've only had luck using those slots if I'm able to first free up whatever is causing that fastener to be stuck to the point that it rounded over in the first place.

They make rounded bolt impact sockets for a reason.

 

[gigamel]

They make rounded bolt impact sockets for a reason.

Yep, for a regular rounded hex bolt you are right, but for a carriage bolt OP got a point

 

[rlitman]

Maybe for something similar, but that square part makes carriage bolts not such a good exact.

As I said, I have done things like this before. But I’ve got to be pretty desperate.

 

[gigamel]

Yes, right again, but OP also mentioned the special (desperate) case:

"something like a carriage bolt that's spinning freely in rotten wood."

 

[619DioFan]

I have the 1/2 inch drive screwdriver bit sockets from HF. 3 slotted and 3 phillips. the slotted are 7/16 . 1/2 and 5/8. work very well and lifetime warranty.