Rotary hammers, fucking beasts. We were talking about our tapered bits. We have tons with one dull ring. 46 bucks for 20 holes adds up. On Jun 3, 2015 10:00 PM, "Jason McKemie" <[email protected]> wrote:
> I must have never used a rotary hammer then, hammer drills seem to work > just fine for stone, masonry, etc. > > On Wednesday, June 3, 2015, Ken Hohhof <[email protected]> wrote: > >> Rotary hammer very different beast than hammer drill which is only >> good for stuff like tapcons. >> >> *From:* Jason McKemie >> *Sent:* Wednesday, June 03, 2015 8:08 PM >> *To:* [email protected] >> *Subject:* Re: [AFMUG] Sharpening Drill Bits >> >> Yeah, never use anything but a hammer drill on stone/concrete/etc. >> >> On Wednesday, June 3, 2015, Josh Reynolds <[email protected]> wrote: >> >>> What you want for the concrete is a rotary hammer. A little spendy and >>> the bit cost is astronomical, but they will bite through granite like it's >>> nothing in seconds. We use rotary hammers for rohn wall mount kits going >>> into brick, concrete, and stone. Have only tried the corded hitachi's, >>> although dewalt has a cordless one I've been keeping my eye on. >>> >>> >>> http://www.amazon.com/Hitachi-DH40MRY-16-inch-Rotary-Hammer/dp/B000XVINQY/ref=sr_1_4?ie=UTF8&qid=1433378353&sr=8-4&keywords=hitachi+rotary+hammer >>> is what we've used. >>> >>> >>> http://www.amazon.com/DEWALT-DCH253M2-Mode-Rotary-Hammer/dp/B00DD1UOTU/ref=sr_1_9?ie=UTF8&qid=1433378421&sr=8-9&keywords=dewalt+rotary+hammer >>> is the one I've had my eye on. >>> >>> Josh Reynolds >>> CIO, SPITwSPOTSwww.spitwspots.com >>> >>> On 06/03/2015 02:37 PM, Jaime Solorza wrote: >>> >>> We are trying different brands for 3/32 holes we need for door contacts >>> and switches. Metal is tough then we hit concrete on door frame. Slow >>> speeds and oil helps but we eat them up. For concrete and cinder block >>> walls Hilti drill and bits have no problem. >>> >>> Jaime Solorza >>> On Jun 3, 2015 4:26 PM, "Chuck McCown" < >>> javascript:_e(%7B%7D,'cvml','[email protected]');> wrote: >>> >>>> You can do it by hand with a bit of practice. >>>> >>>> *From:* Glen Waldrop >>>> *Sent:* Wednesday, June 03, 2015 4:24 PM >>>> *To:* javascript:_e(%7B%7D,'cvml','[email protected]'); >>>> *Subject:* Re: [AFMUG] Sharpening Drill Bits >>>> >>>> My dad has always sharpened his own, so I tend to do the same. >>>> >>>> In my experience, if used in wood they can be sharpened with little >>>> issue. If you drill through metal, buy a new one. >>>> >>>> It loses some of the hardness on the edge. It really needs to be >>>> tempered again after sharpening. >>>> >>>> >>>> >>>> ----- Original Message ----- >>>> *From:* Rory Conaway >>>> *To:* javascript:_e(%7B%7D,'cvml','[email protected]'); >>>> *Sent:* Wednesday, June 03, 2015 5:18 PM >>>> *Subject:* [AFMUG] Sharpening Drill Bits >>>> >>>> >>>> We are paying $15-$25 for longer drill bits. When they start to get >>>> dull, just wondering if anyone has had success sharpening them or do you >>>> just buy new ones? >>>> >>>> >>>> >>>> *Rory Conaway **• Triad Wireless •** CEO* >>>> >>>> *4226 S. 37th Street • Phoenix • AZ 85040* >>>> >>>> *602-426-0542 <602-426-0542>* >>>> >>>> *[email protected]* >>>> >>>> *www.triadwireless.net <http://www.triadwireless.net>* >>>> >>>> >>>> >>>> *“You may be an engineer if your idea of good interpersonal >>>> communication means getting the decimal point in the right place.” – >>>> Unknown* >>>> >>>> >>>> >>>> >>>
