Cheese tools.

[dobbslc]

I helped my eldest boy change his front brake pads today and needed a bit to remove the Torx bolt on the disc so I got out my set of US Pro bits and this happened!

The bolt wasnt even that tight!

Total cheese
I'm off the Halfords with my birthday vouchers now

 

[dobbslc]

Here's the old discs and pads!

Only started scraping a couple of days ago.

 

[Barking Mat]

It's cheese related...

Cheese rolling race: Hundreds compete in Coopers Hill event

Canadian Delaney Irving, who won the women's race, was knocked unconscious as she chased the cheese.

www.bbc.com

 

[brightspark]

us pro car boot tat

 

[Barking Mat]

I helped my eldest boy change his front brake pads today and needed a bit to remove the Torx bolt on the disc so I got out my set of US Pro bits and this happened!
View attachment 401750View attachment 401749
The bolt wasnt even that tight!

Total cheese
I'm off the Halfords with my birthday vouchers now

I do rate Halfords despite what some people say.

 

[brightspark]

i have an old halfords half in ratchet ive tried killing it with a scaffold pole and hitting it with a big hammer it wont die

 

[Ubique]

These disc fasteners are notorious for being 'Torx-killers' due to the relatively high surface area likely to corrode vs. the small centre area for the drive bit. Probably the worst I've personally come across are the JLR Tx 50 countersunk M8 screws, using hand driven bits just twists them, using air or electric impact just shears them - MAC, Facom, Gedore, Snap-on etc. bits suffer equally, the only hope you've got is that the previous fitter put a smear of GP grease on the countersink when fitting.

 

[Barking Mat]

With stuck ones I have had great success drilling out the torx splines in the fastener so its round. Then hammering in an appropriate sized splined bit and using one of those impact drivers you hit with a hammer. The splined bits seem much stronger but seem to give enough grip to turn it out.

I'd be sticking unwin sockets on them at that point.

 

[Ubique]

To be honest, I never bothered initially with the Torx, just a BFO centre punch & hammer around the periphery then Torx bit once it had moved 'a bit'.

 

[Barking Mat]

unwin?

Urwin ?

 

[JOEPRO]

To be honest, I never bothered initially with the Torx, just a BFO centre punch & hammer around the periphery then Torx bit once it had moved 'a bit'.

Yes user error me thinks.

Anyone can break a torx bit if careless.

I have some US Pro torx sets and haven't had any issues. I also don't abuse them so there is that.

Brake disc torx bolts are always a high risk. Mercedes ones come with lock tight pre applied.

So I heat them with a MAP Torch first to soften any locktight then smack them with a large hammer and shock the disc also. Then undo it.

 

[Barking Mat]

Irwin apparently.

 

[Barking Mat]

Yeah, sorry I was a couple of constanants off, Google it, magic things.

 

[Ubique]

Yes user error me thinks.

Anyone can break a torx bit if careless.

I have some US Pro torx sets and haven't had any issues. I also don't abuse them so there is that.

Brake disc torx bolts are always a high risk. Mercedes ones come with lock tight pre applied.

So I heat them with a MAP Torch first to soften any locktight then smack them with a large hammer and shock the disc also. Then undo it.

Never had any issues with Merc. ones as they are flat not countersunk and have a relatively small contact area - that said, they (all of them) are only there to locate, not secure the brake disc and overtightening is the biggest cause of problems.

 

[JOEPRO]

Here was a particularly nasty set on my S600 before



As a bonus these little screws were also stuck hard



Basically anything seized like this I go for my MIG and tray of large nuts

 

[Ubique]

Fair one, we don't usually see stuff that's 'sat for a while'

 

[MetalMonkey]

I've found the old school hand impact screwdrivers often work magic on these. The short stout bits also help.
When they don't, out comes the drill.

 

[dobbslc]

Yes user error me thinks.

Anyone can break a torx bit if careless.

I have some US Pro torx sets and haven't had any issues. I also don't abuse them so there is that.

Brake disc torx bolts are always a high risk. Mercedes ones come with lock tight pre applied.

So I heat them with a MAP Torch first to soften any locktight then smack them with a large hammer and shock the disc also. Then undo it.

Nah not user error. Just soft ****e steel tools!
I gave this bolt a good whacking before trying to move it same as the other side that came out ok.
One twisted the other snapped so that tells me quality control is poor.

 

[8ob]

Here's the old discs and pads!
View attachment 401751
Only started scraping a couple of days ago.

Must have seized or sticking sliders for one pad to wear like that.

Bob

 

[pptom]

Not cheese, but I did once buy a set of extra cheap Allen keys for my work toolbox, They were made of liquorice.