Jason, I've had good luck with DeWalt's carbide 4 blade bits like this one - https://www.amazon.com/gp/product/B00004RHF2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
There are other brands that are probably just as good, but I'd look for carbide and I'd look for the 4 cutter design. Thanks, Kienan Green-Go Solar Wholesale Distribution kienan@dist.solar (801) 631-5584 ________________________________ From: Jason Szumlanski <ja...@floridasolardesigngroup.com> Sent: Thursday, October 12, 2023 4:10 AM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Cc: Kienan Maxfield <maxfieldso...@hotmail.com> Subject: Re: [RE-wrenches] Nuance ground racking On that subject, what bits are people using to drill holes through block/concrete (for 1" - 2" conduit)? We have been using some dry diamond coring bits we buy online, but they don't seem to last. We have had them break off at the weld. Wet coring seems overkill for the relatively few holes we need to make. Jason Szumlanski Principal Solar Designer | Florida Solar Design Group NABCEP Certified Solar Professional (PVIP) Florida State Certified Solar Contractor CVC56956 On Wed, Oct 11, 2023 at 10:49 PM Kienan Maxfield via RE-wrenches <re-wrenches@lists.re-wrenches.org<mailto:re-wrenches@lists.re-wrenches.org>> wrote: I own the Dewalt 2 inch 60V rotary hammer you linked and it is totally awesome. You’ll be blown away by it. It’s totally worth it. You might want to make sure to just use the huge 12ah batteries that it comes with… might be a lot of power demand fire smaller 60V batteries… but I regularly use mine with the smaller batteries and I’ve never had a problem. I mostly use it for drilling 2 inch holes in 8” concrete walls for bringing conduit into basements and crawl spaces. It goes through amazingly easily. Everyone who has tried mine has been totally blown away… probably about 8 professionals and contractors. Thanks, Kienan Green-Go Solar Wholesale Distribution LLC kienan@dist.solar (801) 631-5584(Cell) www.distribution.solar On Oct 9, 2023, at 8:33 AM, Dave Tedeyan via RE-wrenches <re-wrenches@lists.re-wrenches.org<mailto:re-wrenches@lists.re-wrenches.org>> wrote: Hi all, I am going to try out the Nuance OSPREY PowerRack as a ground mount option that does not require an excavator. I am wondering two things about it: 1. Does anyone have experience with this, and do you like it? 2. What drill do you use for the drive rod? It seems like the Milwaukee 2" SDS max drill is the standard - https://www.milwaukeetool.com/Products/5342-21 I am wondering if it is possible to use a cordless drill though. DeWalt makes both a cordless and corded version that claim to have the same impact energy as each other, although both are less than the Milwaukee Drill. Milwaukee has 19.9 ft-lbs of energy and the DeWalt ones have 19.4 Joules, which is 14.3 ft-lbs of energy. Cordless Kit - https://www.dewalt.com/product/dch773y2/60v-max-2-brushless-cordless-sds-max-combination-rotary-hammer-kit Corded Kit - https://www.dewalt.com/product/d25773k/2-sds-max-rotary-hammer The cordless drill is tempting because I already have a bunch of DeWalt equipment, and it would be nice to avoid needing a generator or some very long extension cords. Thanks! -Dave -- [Logo]<https://www.sungineersolar.com/> Dave Tedeyan, P.E. Owner | Sungineer Solar p: he | him | his a: 1653 Slaterville Rd. | Ithaca, NY 14850 w: www.sungineersolar.com<http://www.sungineersolar.com/> c: (607) 270-0370 _______________________________________________
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