Re: cordless tool 18V to 12V converter

"Richard Smith"  wrote in message news:m1il1x6u84.fsf@void.com...
"Jim Wilkins" <muratlanne@gmail.com> writes:

"Richard Smith"  wrote in message news:m134t3flmh.fsf@void.com...
>
You are probably seeing the price in a pretty box with two
large-capacity batteries - 4Ah or 5Ah.
>
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I've used a large powerful drill to cut 4" holes for conduit in steel
and would rather not have to need to again. It was inside a
closet-sized electrical enclosure and when the hole saw jammed the
long-handled geared drill would continue for another quarter turn,
whether or not some part of me was in the way.
>
The Makita is something of a beast too, but I use it outside. When
with a crew I feel like the squad member who has the machine gun.

Got the DeWalt DCH263 - arrived.
Seems for-real - batteries I already have fit it, etc.
Bought a couple of SDS masonry drill-bits - 14mm and 10mm.
Already have 14mm "feathers" - splitting wedges.
Hope to take them to the mine next week and see if can split rocks -
this hard granite.
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The advice from Trow and Holden was about splitting granite neatly in a quarry. The miners may have other ways to split it roughly to dispose of it.
The only way I've seen was with the hydraulic jackhammer on an excavator, and it could take perhaps an hour to crack a large granite boulder left from blasting and meant for fill. They drilled to blast but not to break up the rubble.