He he..

I thought he was doing the river dance. 😂😂

I'm concerned for the knee joint after seeing that.

Yes, the sieve bucket is the best.

@@demolitiondavedrillandblast Best operator I have seen on your channel I reckon! Neat and tidy and fast

For Sure Murray.

Thanks for watching and contributing Alan, I guess that If I had been doing an office job all my working life and I just picked up a rock drill for the first time it would be wiped out, it comes down to what you are used to and muscle development from repeated use.

Thanks Trevor, I probably would be good at rock climbing, as a kid I would climb everything including light poles and power poles, steel and wood types.

​@@demolitiondavedrillandblast I really liked the "special effects" you added to your leap onto the drill. You really are the 6 million dollar man 😊.

Dave does not climb rocks, he brings them down to himself.

​@@SuperRede4u Yeah, I caught The Six Million Dollar Man Special Effects music! We are showing are age, that show was on TV in the late 70s and early 80s. 😂

Yeah no kidding. You miss and you're singing soprano.

Thanks for watching Scott.

Hey, thanks for watching and contributing Dave.

Thanks #44

If it gets too startling the neighbors start complaining Jim.

I like that Jerry, it's got a bit of a ring to it.

Yes, good idea if you want to work near stone dust and live. Shocks me what I see on KZfaq from India, very sad.

He he... It comes from my ballet practice.... not really.

Haha 😄

It sure does Mark.

You are welcome Aaron.

I bet it does, lots of low frequencies in there that most people miss out on. Thanks for watching, don't forget to hit the like and subscribe.

Thanks for tuning in Bob.

Thanks for tuning in Penelope, please get comfortable and enjoy the view ~ 250 blast videos to chose from

Thanks Lee. I will not be stopping any time soon.

That reminds me that I have to buy another long one this weekend.

Thanks Swishy.

The Silver Bullet @$350 was probably the best money that I have ever spent on equipment, drilled tens of thousands of holes for me and put me ahead of the pack when the other guys were using fairy size drills.

Thanks for watching it Bruce, please share it with others.

Thank you for watching and contributing #101

Thanks for tuning in CT.

Thanks for tuning in!

You guys must be very laid back.

It is.

Oh... this is nothing Thomas!

Yes, a lot harder than digging up potatoes... but also a lot more fun.

@@demolitiondavedrillandblast That's enough harvest to make a lot of stone soup. You guys do excellent work. Thank you for the videos.

Music from the KZfaq royalty free library - A call is upon us by the 126's

Lot of energy available in this stuff JW, thanks for tuning in again.

Thanks Luke.

Thanks for watching William

Thanks Bob.

You really have to keep on top of this when you work for your self.

Thanks for watching CJ

Thanks Bill.

Hey, thanks for watching and contributing #56

It is. static.wikia.nocookie.net/tractors/images/5/5a/Holmans_drill_1955.jpg/revision/latest?cb=20110419190441

Thanks Jammer.

Thanks TC

No problem, thanks for watching and contributing Jason.

Thanks Murphy.

Thanks Brent... ahh... drilled 8 hours today and I'm a bit brokem

Blasters paradise.

No, I really work that fast!

Thanks for watching KP, the soil cover does and excellent job of covering the violence.

I’m in Rocklin. Do you know where this is?…

@Mike Gowan I know Rocklin yes. But Dave works down in Australia...

Ian Anderson.... of Jethro Tull fame? Thanks for watching.

@@demolitiondavedrillandblast Indeed it is Dave 😉 As an ex Sapper who loved a bit of improvised demolition and is a machine operator by trade your videos tick all of the boxes. Looking forward to more 👍🏼 Ps love the controlled blast method btw. Genius. What depth of cover are you looking at minimum around 0.3m ?

Thanks John and thanks for watching.

It is hard work!

Thanks and welcome back to KZfaq, I like al of your HV stuff, for some time now I have been thinking about building a European wasp killer using about 20KV using an old TV line output transformer. I have a professional electronic background.

Hi Chris, thanks for tuning in, I certainly don't need to go to the gym... but I do swim a lot. I don't have any broken body issues at this stage but I would like to give the hand drill jobs away soon and just do drill rig stuff. The chevron pattern hook up is an old classic that looks similar but but has some big differences, e.g. Shot started at delay #0 in the center of the face, delay #1 was 3 holes that made the first chevron, delay #2 was 5 holes that made the second chevron etc. This is a big advantage over the earlier method of firing it row after row as it gave better fragmentation. These days the plan is to make sure that no 2 holes fire with a time delay closer than 8 milliseconds - a critical number for blast vibration management considerations. This is achieved by using a control row (front row) time spacing of 17ms/hole and the reverse echelon rows are timed @ 42ms/hole, this works out very nicely without any sub 8ms timing collisions until you get about 5 or 6 rows deep and give superior fragmentation compared to previous methods.

Many thanks for the reply Dave - appreciated. I see the difference now - my 'chevron' training was of course rock face work - quarry etc - sort of 'classic'. Your considerations make total sense and I imagine the planning for your delays must be pretty carefully made to avoid 'collisions'! Some similarities between approaches in as much as one always wants a hole energy to go where it can do most useful work Thanks again :)

Yeah, I could do a video comparing the various drill head types, e.g. Integral chisel / Cross bit / Button bit and the efficiencies of knock on taper rods against Rope thread rods. Also thinking about knocking up a really simple venturi powered dust extraction system (like I once used) with the hope that some of the Indian drillers might pick up on the idea and save their lungs. Any other ideas? Oh... by the way, your YT channel has been up for more than a year now and I still don't see any video!

Thanks for noticing Dave.

Thanks #42, all good here thanks, lot of solar flares this week also but no big CME impacts to cause Aurora again at my latitude.

There is heaps of them in this area, so many that they are a pest.

@@demolitiondavedrillandblast I'm certain you cannot use blasting substances to remove those 'roos, but how did you chase so many off? Does the siren scare 'em away? Thanks for these brilliant KZfaq Videos, Demo Dave!

The are keen on letting people get close and they will usually just take off, the drone really freaks them out!

Thanks for tuning in.

Thanks for tuning in, good to have people onboard that have worked in the industry. The Grey Kangaroos are generally not much of a problem as they would rather get out of your way...most of the time but you don't push them as they can be very dangerous. We do not have the Reds around here but I understand they are best left alone. Biggest problem with the greys is that they have no road sense at all and regularly tangle with traffic.

@@demolitiondavedrillandblast We have deer that do that (No car sense). The carnage on the road is incredible. Thanks for responding.

It was really hard granite MLP, thanks for watching.

I just tossed that in at the last moment Woody, seems like it hit the spot. Thanks for tuning in, please like and subscribe.

I have no trouble getting to sleep.

Thanks Martin, I have helped a few people learn the ways but they move on because it is too difficult for most people.

Boom goo... Hmmm...is that the same stuff as blasting snot?

Maybe I should hire so Ballerinas for assistance.

@@demolitiondavedrillandblast Would it be more cost effective to hire big, fat , corn fed ballerinas ??? AHH. My buddy thinks the advertising for your big ballerinas might be a problem... To get really effective workers .........You yourself sure do well..........

Over weight workers tire out very quickly.

Hey Joe, I can not answer your emails because the return address bounces every time. do you have another email address that I can try??

Hey Joe, I can not answer your emails because the return address bounces every time. do you have another email address that I can try??

Hi there!

Sounds like a good idea but the ipod generation can't keep up.

I used to love that show as a little kid.

@@demolitiondavedrillandblast 👍

Thanks #14

The stick is calibrated.

When it is not wet and muddy.

I would have bought my little excavator mounted drill to this one except that my tilt tray truck is off the road at the moment, my other option is to pay somebody to move it for me but I would not be able to take it home each day. Having had Two machines stolen, I'm not keen on leaving stuff at the site.

@@demolitiondavedrillandblast yeah thieves are bad around here too most who do work like that and leave the machine there will pull something vital and take that with them so it won't start!

@@demolitiondavedrillandblast you know Dave after thinking on it i bet that vibration issue at a 100 psi is an out of balance piston! steel can be denser in some parts of stock than others if the mill that poured it isn't careful! i bet if it's spin balanced it'll show it's heavier on one side!

There has also been a failed attempt to steel my little digger, they were unable to start it because I had pulled the plug off the engine stop solinoid.... so they gave the instrument panel a hammer massage.

Never thought of that, I could try another piston nest time it's in bits.

Thanks for watching Paul, 250 other videos to enjoy.

Oh... they are very dumb critters. Like all marsupials, they have a very small brain and very often jump into traffic. Recently I was dirt biking with friends and we stopped to wait for others to catch up, just as I was slowing up one jumped clean over my head!

That has crossed my mind Paul, some drills you can however with this one it has a small built in oil reservoir for chuck lubrication and I expect that a oil gallery runs between the main body and lower bit. I'll know the first time I have to open it up.

Thanks Vaughn.

Star drive by Jeremy Blake - Music from the KZfaq royalty free library

People have also told me (a while back now) that I also looked a lot like Dave Falkner from the Hudoo Gurus.

No... that was Geo cide, bit different.

Thanks for watching Murray, my videos are deliberately light on with these details.

@Demolition Dave Drilling and Blasting yeah I guess I didn't think it through haha. Cheers for the reply mate 👍

Kinda proprietary formula and artistry that part there. Also proportioning proper amounts of the "working materials" per hole and based on depth as well as the material to be broken is based on hard knowledge and decades of experience. Understanding the way rocks break and move and sequencing the delays to accommodate the material split off and moving just looks easy in the videos. Likely for Dave it is in fact just that, easy. There is actually allot of info on the internet about the how and why of everything Dave does and Dave not telling helps keep his insurance low!

Oh they did have a crack at it and realised that it was futile, before I got the call

Yes it was money well spent, hope it lasts as long as the Silver Bullet. Should do, CP is good stuff, even though they are now made in India, I have had a good run so far with Indian drills.

Picking up all of the used surface delay clips and signal tube, trash.

Somebody thought it would be a good idea to install all of the under slab plumbing before the rocks were removed

@@demolitiondavedrillandblast what, not a good idea

That is for sure #33

Welcome Sale.

Hey... welcome WELD MACHINE, I think that if the buyer had of had even the slightest look around he would have seen the huge number of rocks in the paddock next door and got a strong hint of the trouble brewing. This is a full time gig for me, will be 30 years on in August. Never good to hit skippy on the road, something more concerning is the number of deer that I have been seeing on the road recently.