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Jason,</div>
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I've had good luck with DeWalt's carbide 4 blade bits like this one - <a href="https://www.amazon.com/gp/product/B00004RHF2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1" id="LPlnk568052">https://www.amazon.com/gp/product/B00004RHF2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1</a></div>
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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.</div>
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Thanks,</div>
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Kienan</div>
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<div>Green-Go Solar Wholesale Distribution</div>
<div>kienan@dist.solar</div>
<div>(801) 631-5584</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Jason Szumlanski <jason@floridasolardesigngroup.com><br>
<b>Sent:</b> Thursday, October 12, 2023 4:10 AM<br>
<b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br>
<b>Cc:</b> Kienan Maxfield <maxfieldsolar@hotmail.com><br>
<b>Subject:</b> Re: [RE-wrenches] Nuance ground racking</font>
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<div class="x_gmail_default" style="font-family:arial,helvetica,sans-serif">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.</div>
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Jason Szumlanski
<div><span style="color:rgb(51,51,51); font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif; font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51); font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif; font-size:13px">
<span style="color:rgb(51,51,51); font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif; font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51); font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif; font-size:13px">
<span style="color:rgb(51,51,51); font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif; font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div>
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<div dir="ltr" class="x_gmail_attr">On Wed, Oct 11, 2023 at 10:49 PM Kienan Maxfield via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br>
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<div dir="auto">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.
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<div>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. </div>
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<div>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.<br>
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Thanks,</div>
<div>Kienan</div>
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<p style="margin:0px; box-sizing:border-box"><strong style="box-sizing:border-box; background-color:rgba(255,255,255,0)">Green-Go Solar Wholesale Distribution LLC</strong></p>
<p style="margin:0px; box-sizing:border-box"><strong style="box-sizing:border-box; background-color:rgba(255,255,255,0)">kienan@dist.solar</strong></p>
<p style="margin:0px; box-sizing:border-box"><strong style="box-sizing:border-box; background-color:rgba(255,255,255,0)"><span dir="ltr">(801) 631-5584</span>(Cell)</strong></p>
<p style="margin:0px; box-sizing:border-box"><strong style="box-sizing:border-box"><span style="margin:0px; text-decoration:underline; background-color:rgba(255,255,255,0); display:inline">www.distribution.solar</span></strong></p>
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<blockquote type="cite">On Oct 9, 2023, at 8:33 AM, Dave Tedeyan via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br>
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<div dir="ltr">Hi all,
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<div>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:</div>
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<div>1. Does anyone have experience with this, and do you like it?</div>
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<div>2. What drill do you use for the drive rod? </div>
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<div>It seems like the Milwaukee 2" SDS max drill is the standard - <a href="https://www.milwaukeetool.com/Products/5342-21" target="_blank"><span id="x_mt-tracked-link_0_1697105388530" style="color:red"></span>https://www.milwaukeetool.com/Products/5342-21</a></div>
<div>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.</div>
<div>Cordless Kit - <a href="https://www.dewalt.com/product/dch773y2/60v-max-2-brushless-cordless-sds-max-combination-rotary-hammer-kit" target="_blank"><span id="x_mt-tracked-link_0_1697105388531" style="color:red"></span>https://www.dewalt.com/product/dch773y2/60v-max-2-brushless-cordless-sds-max-combination-rotary-hammer-kit</a></div>
<div>Corded Kit - <a href="https://www.dewalt.com/product/d25773k/2-sds-max-rotary-hammer" target="_blank"><span id="x_mt-tracked-link_0_1697105388532" style="color:red"></span>https://www.dewalt.com/product/d25773k/2-sds-max-rotary-hammer</a></div>
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<div>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.</div>
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<div>Thanks!</div>
<div>-Dave</div>
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<a href="https://www.sungineersolar.com/" target="_blank" style="color:rgb(51,122,183); background-color:transparent"><span id="x_mt-tracked-link_0_1697105388533" style="color:red"></span><img border="0" alt="Logo" width="105" style="border:0px; vertical-align:middle; width:105px; height:auto" src="https://sungineersolar.com/wp-content/uploads/2019/08/Logo-Image-Only-1.png"></a></td>
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<span style="color:rgb(236,189,0); font-size:11pt; font-weight:700">Dave Tedeyan, P.E.<br>
</span><span style="font-size:11pt; font-weight:700"><font color="#ecbd00">Owner | Sungineer Solar</font><br>
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<span style="color:rgb(236,189,0)"><span style="font-weight:700">p: </span></span><span style="font-size:13.3333px"><span style="font-size:10pt; color:rgb(0,0,0)">he | him | his</span></span><span style="color:rgb(236,189,0)"><span style="font-weight:700"><br>
a: </span></span><span style="font-size:10pt; color:rgb(0,0,0)">1653 Slaterville Rd.</span> <span style="font-size:10pt; color:rgb(0,0,0)">| Ithaca, NY 14850</span><br>
<span style="color:rgb(236,189,0)"><span style="font-weight:700">w:</span></span><a href="http://www.sungineersolar.com/" rel="noopener" target="_blank" style="color:rgb(51,122,183); background-color:transparent"><span id="x_mt-tracked-link_0_1697105388533" style="color:red"></span><span style="font-size:10pt; color:rgb(0,0,0)"> www.sungineersolar.com</span></a><br>
<span style="color:rgb(236,189,0)"><span style="font-weight:700">c:</span></span><span style="font-size:10pt; color:rgb(0,0,0)"> (607) 270-0370</span></td>
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