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PeterC PeterC is offline
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Default Is this drill working properly? Makita 8391

On Mon, 6 Dec 2010 12:39:01 -0800 (PST), David Robinson wrote:

On Nov 22, 10:06*pm, John Rumm wrote:

Never thought to actually try this, but I just did on myMakita8443D,
and yes I can stop it on setting 16. Its got a fairly strong tug though
at that setting. I would guess a 2" 10 gauge twinthread screw into
softwood without a pilot hole would be about the limit of theclutchon
the highest setting.


Funny you should say that. Today I was using 10g 2.5" single thread
into floorboards with a pilot hole, and at the top setting, when the
screw hit the last cm (i.e. the bit where the pilot hole ended) the
clutch slipped.

I swapped back to the focus DIY model, and at setting 19 (out of 21)
it did the job perfectly. Screws all the way in, without jumping or
snapping, every time.

I wasn't sure before, but now I am: This thing's got to go back!!!

Cheers,
David.


I recalled this thread t'other day when I was using a 12V Makita drill. The
job was re-laying chipboard flooring in the loft, starting the screw
manually to pick up the existing thread in the chipboard and, with care, the
thread in the joist. One or two missed the hole in the joist but the drill
still drove them in.
The screws are ordinary Goldscrew, 60mmx5mm, so quite big for a 12V drill.
For just driving them into the same holes, setting was 14; 16 managed the
new thread.

Does look as if yours isn't up to spec. - or I need to complain about mine!
--
Peter.
The gods will stay away
whilst religions hold sway