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John Rumm John Rumm is offline
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Default Indestructible PZ and PH screwdriver bits?

On 31/07/2018 11:05, NY wrote:
"Jim K" wrote in message
.. .
"Bertie Doe" Wrote in message:
Ok there's no such thing as indestructible but what's the toughest
brand on
the market. Despite using pilot holes and the slowest speed on my Bosch
cordless, I've destroyed countless sets over the years. TIA.


What kind of "destroyed"?


I find that most bits are fairly indestructible. It's the screw heads
that get mashed-up and rounded off after a couple of turns.


Which means either you are using a poorly fitting (or worn) bit, or
cheap and nasty screws.

With a good pozi bit to head fit, you should pretty much be able to lift
the weight of the driver itself, just holding the screw.


The worst screws were some which came with some Rawlplugs. I drilled the
correct size hole in the masonry and used the screws that came with the
Rawplugs (so there were definitely the right size) but they were very
difficult to screw in and kept sticking to the plugs, so I had to use a
fair amount of force. And before I'd got them fully in, the heads of
most of the screws were rounded-off. I ended up having to drill the
heads off, grab the shaft with a Mole grip and them and then use my own
screws which were a lot better. I think the ones I bought may have been
brass rather than steel.


For many thing that come with screws, the quality of screw often leaves
much to be desired IME.


--
Cheers,

John.

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