Core drilling 5ft diameter hole in 6ft concrete wall on Dam

[tepanec]

they look tired

[chuckie54able]

I'VE DONE A 3FT HOLE THRU 15 FT ON A DAM IN NORTHERN CAL 1ST HOLE TOOK 2 DAYS 2ND ONE TOOK ABOUT 7 HOURS

[sainglain]

them men should be wearing ear protection - as that noise would drive me crazy

[cassavathailand]

สุดยอดจริงๆเลยครับท่าน

[MrGoodlookinguy]

@TorchwoodElectrics The hole was for a new spillover system for the dam

[SalohcinSilverwing]

Is anybody else reminded of Gurren Lagann?

[croakerchoker504]

does it blow out the other side when it penetrates?

[tubestick00]

you'd probably have to pull out every so often and break all the concrete out so as the finished core didnt end up so heavy it'd destroy the core drill on removal

[refamagroup]

Dear friend what do you use to hold the drill bit at the begining of the hole, does the weigth represent a problem, how dis you get the rid of the concrete in the drill bit after the work? regards for your answer

[Yngsatchvai]

@refamagroup You can anchor rollers around the bottom and sides of your bit to keep it in line while you start the drilling, after its started it pretty much stays in line. Most important to make sure you start the hole level! any angle depending on how deep will make your job a nightmare! To get the core out we would measure the wall thickness and drill to within 1/2 " of breaking through then pull out, break out core with sledge and wedge, attach eye bolt to middle of core and backhoeerout!

[Gaurirebeton]

i wish that toy for my birthday...

[shermstic]

try puttin that bad boy in your blackspur, rolson, silverline cheap shit electric drill off ebay.

[onefugowie]

i dont get this a damn holding dirt back..??

[CIFOLDEN]

the biggest we have is a 42" at my job but i have seen people drill an 82 inch hole. it was a monster. how was the steel in dam?

[MrGoodlookinguy]

@CIFOLDEN there was'nt even one mat of steel it was built in the 40's

[section8machinist]

Don't you need just a small hole for the dynamite. lol

[sawman288]

ill bet that took some time by largest so far was a 32 inch dia with hydro power pack

[The08bruteforce]

Is that a hydraulic drill?

[leejax01]

We use wheels on brackets mounted to the wall to take the weight off the stand and to let the bit "ride". I can tell a real cutter as we tend to hate it ...lol... nothing like a vault tap... with the crazy steel, slurry and armed guards with machine guns.

[Primer9]

what gives it so much power too drill?? i dont see any engine

And what brand is that lol

[mozangeles81]

@Primer9.......its hydraulic and probably a meco power pack

[tvfilmglamdirector]

Plenty of health & safety...NOT

[dynamicqc6]

what a hater

[SparalOy]

WOW! that is one big drill! I have got a drill half that size stuck, and it was a pain in the *** to take loose :/ i could just imagine how that would be if it got stuck!

how many KW powerpack do you use?

[master1759]

Give Free cut and it will never stuck. means the the bits at the cutting end should produce slightly bigger diameter to accomodate and freely rovolve the bucket

[huevorosado]

I love my m6 too especially getting paid!!

[eln2416]

i spin 72" wall saw blades, which is a lot of fun(SUCKS). biggest bit ive usedis a 30" not too bad(STILLSUCKS)

[Tacomadan]

I have done that! but have you ever drilled into a bank? LEGALY?

[f100deathmachine]

dude that hydraulic coredrill kicks ass. i just did a hole with one at the beach through the sea wall. 20 inches though. really small compared to that thing.