1 Nov
2007
1 Nov
'07
4:55 p.m.
On Thu, 1 Nov 2007, Tony Duell wrote:
drilling a hole down the middle
a left handed drillbit is significantly better than a conventional one,
since it will be tending towards loosening, not tightening.
and then using an easy-out. Does that term exist
across the Pond?
yes. But it is applied to only a few varieties
Removing a broken easy-out is a lot more fun.
There are special fluted tools for trying to remove broken taps, but not
for easy-outs.
Snap-on makes a good quality broken bolt extractor that is specifically
designed so that WHEN it breaks, it leaves enough sticking out to grab
with 5WR Vise-grips.
I have neve seen RH thread easy-outs for removing
ledt-handed shear-head
bolts, which suggests that said bolts would be a little harder to remove
I have used a type of easy-out with straight flutes (instead of left-hand
thread), that can be used for left handed broken bolts.
I have neve seen such bolts used in classic computers
I can't recall DELIBERATE shear-head bolts in computers, but I have
removed broken bolts, and even a broken easy-out, from Hitype I printers.
--
Grumpy Ol' Fred cisin at xenosoft.com