festool
festool is a brand of festo
in instrument fitting festo is a major brand, pnuematic solenoids relays etc. see link
Festo Australia - Home
I did an apprenticeship as an electrician (4 years) in a mining company, later did another apprenticeship as an instrument fitter (another 4 years), a diploma of electrical engineering (another 4 years of night school).
I used a dewalt xrp 18volt day in day out in construction as a hammer drill doing 16mm 5/8th chemsets, screwing of roofing screws etc etc. But I looked after the bateries, C5 charge rate 9 times, then c10 discharge rate. The industry now considers theses batteries were junk and they earned a bad reputation.
hence my earlier post about how I was not going to make your ears bleed about how to get the best out of a drill/battery combination.
1) buy a major brand, Makita, Dewalt, Panasonic, Hitachi,Festool, Milwaukee
2) buy the pro series if it is going to be a day in day out work horse.
3) buy the brand that has good quality after market batteries available in your area at a affordable price.
In my area it is easier to get Makita clone batteries. with a 12 month no questions warrantee.
1) and 2) are buy quality
3) is about unless you are up to date, and anal about battery maintenance, buy what is going to be easily accessible, right price replacement in your area.
It maybe the dealer has good stock of original and clone batteries from Japan not Bangladesh, or there is a battery re-packer close to you that is not a bush ranger (ned kelly)
curently I own makita 18 li-ion 13mm BDF4543 and makita 18 li-ion BTD140
I have used my employers Dewalt, Panasonic, Festool, Makita, Bosch, Ramset, Hilti, as day in day out work tools, 7.2volt,9volt,12volt,14volt,18volt,24volt,36volt
all were good tools
also a tight-arse that bought GMC18Volt nicad, the mech fitters killed these in 3 to 4 months , I made mine last 2 years, ( absolutely full-time anal battery maintenance).
If you are a DIY re packer buy batteries with tabs on them, keep heat away from battery when soldering them together (e.g. use aluminium heat sink tweasers on tabs). professional re packers have spot welders to do this.
sanyo made good batteries, but have had over heating problems with Li/ion batteries especially with laptops ( google sanyo battery recall and see what I mean).
my first post said get a little drill with a led light if working in tight dark places, get a big drill with a umbilical cable to remote battery on you belt if installing masonry anchors over head 12 hours a day.
their is no best drill/battery, just a drill/battery that suits your needs