A Petrol Rock Drill Patented in 1936. 

The man returned when we missed him.

Another interesting and useful machine --There will be nothing still working in 50 years that is made toady - all the plastic parts will have failed

The genuine surprise on your face when a 100 pound hammer drill tore up your concrete floor cracked me up. You boys sure know how to party over there!

Awesome save of a great vintage piece.

Hello from Tasmania. Nice to hear from you again hope everything’s well on your side of the world. Thanks Kerry

Great to see you back. Your knowledge of these old machines makes for very interesting video content.

That's a big, heavy and great designed machine.

Nice rock drill you find some interesting stuff, Richard.

Great old machine, great to see you back on the utubes. 👍

Awesome video. Glad to see you're doing good. 🔧🔧🔧

Would be a fun project to restore like new. I bet those old machines made men old before their time. A day with that would wear you out😢

All I have ever seen before are air drills. But used the same for drilling holes for dynamite. So if you can get some dynamite you can blast all of those big rocks. You will be a full-fledged "powder monkey" and have a lot of fun at the same time. Would make a great video!

Great to see you back . What a cool rock drill.

Thanks for making, and download of this video, much appreciated, fascinating old machine.

Quick clean up and off you go, can't beat the old machines. as long as they're stored properly. Good to see you back 👍

Woohoo! Benefit of insomnia: being awake when a Yesterday’s Machinery video drops!

That is an incredible machine, excellent video as well. Thank you

That was utterly fantastic ... and I agree, very scary!

Welcome back wicked machine, hope you get some use out of it👍

Very good to have you back. An extremely interesting machine which you skillfully rebuilt. More videos,please. 😂

Wow! Such a beautiful piece of machinery! Thanks for sharing.

An interesting piece of equipment. Good to see you back.

That's amazing. The carburetor looks very similar to a 1980's round-slide carb. All of your content is fascinating, As I've said before, you're like a time traveler. Thanks for sharing this stuff with us.

Yes I’m glad your back . I could use that drill I have some rocks . Thanks for sharing it

Thanks for showing how it worked, i would never had thought of the second piston.

I am VERY glad to see you back!!

thank you i really enjoy all your videos

Such a neat old machine. Thanks for sharing

Hey really nice to see a new upload from you!

I've found a new home, right here watching anything you do. Love it

Brilliant video glad your back more please

very cool that it ran. I need to find a video that shows the guts now.

So good to see you Richard. 🇦🇺

Thanks for the show Richard 🍻🇦🇺

Good to see you again ! Thank you !

Good to see you back. We certainly look forward to your videos and adventures. All the best.

What a nice noisy machine, thank you so much for sharing it!

Very good thx. We would lay them on the ground 5 mins running to warmup. Keep bits sharp! you got a good driller Get you a set of feathers and wedges, split some rocks Pull pts dress on oil stone reshape to factory specs

That is a good old rock drill and it is nice to see you back my friend......Thanks very much 👍 Shoe🇺🇸

Lovely to see you back again. Your videos are informative and a joy to watch.

Very interesting machine, what a great find. Thanks for sharing

I just remembered why I stopped drinking that stuff. Stale fuel causes heartburn and the old lube makes problems tomorrow.

And the wonderful technology of today is toss the machine in the trash because you can no longer get batteries or they cost more than a mortgage payment! Tools if yesterday were easier to work on, heavy and reliable! A manly tool for sure. Great machine and perfectly explained on its workings!😊

i thought.. why not just replace the spark plug? Then after it came out from sand blasting.. all became clear! Very satisfying. Great job!!

When you spit into that fire I almost fell off my chair great video take care

I was tasked with starting one of these that had sat for a long time. We used it for pounding 3 foot metal posts in the ground. It was so heavy and awkward that most of the time the guys opted to use a sledge hammer. I always had respect for these old pieces that were built when men were happy to have them.

Thank you Richard.

Awesome video, that's one cool looking and working rock drill, like the starting handle, no silly pull start 👍👍

Awesome! Its like a dirt bike engine with a drill bit attached, you need a belt loop to store the starting crank. Thanks for your effort, from Wisconsin USA

Intressant video ! Vilket häftig borrmaskin !

Wonderful old machine ❤. Looks like it went into storage shortly after it’s rebuild in the 50s.👍🏴󠁧󠁢󠁳󠁣󠁴󠁿

Gday, I have a similar machine, bit later model that starts extremely easy, there bloody heavy to carry but do a magnificent job, gteat to see you back mate, cheers

Super cool 😎

Just love your videos and these old machines. Thank you.

I've used one of these back in the day as a private Municipal contractor replacing bent parking meter posts imbedded in the sidewalk.

In the 1940s , i remember my uncle using a similar unit in his railroad job .Various bits for digging , tamping etc .

Subscribed when he swigged the old fuel and spit it out then tossed it in the fire 🔥

What a cool old drill. Firing it up on your shop floor had me worried haha.

Good to see you back Richard!!! Another old machine I wish I had access to. I've drilled a lot of holes for "Tee" posts here on my farm using a rotary hammer drill meant for concrete. Your machine would be a giant step up! Well done and glad to see you back! The kids must be getting bigger now!

Great to see you back, missed you! Always entertaining and fun to watch.

Great content, very likable and educating!

Beautiful piece of machinery. Is the rotation working? I can't tell.

@ 6:20The amount of oil on the machine looks right . We ran then 12:1 back in the 1980's

Good to see you back! Nice video as usual.

So glad I started watching ur videos, so inspiring!!🤩🔥

Excellent machine, excellent video, thanks.

Been eagerly awaiting a new vid, you did not disappoint.

Cool,I've never seen one of those other than in old reels from the earlier to mid 1900s ... I'm too old and lazy to use one of those these days,I'd rather just attach the hammer drill to the excavator and sit in the cab working the controls 😂

Very interesting, as usual. Been waiting! Nice!

Glad to see you back, nice job!

It's good to see you back, I trust that all is well. 👍

I check back all the time hoping there's a new video. I'm not disappointed today. Great video and very unique piece of equipment! Thanks

What an absolute beast that machine is! Well done content - as usual.

Cool machine.

Wonderful!

Bravo. It has been awhile and good to see you put out a video. The drill reminds me of an air hammer we use here in the states. Best to you and your fsmily

Your ability to get machines to cooperate is amazing! I have seen a similar machine that was made for packing dirt, but it operated at a much lower speed. The cylinder was very similar. I cannot imagine operating a machine like that daily to drill rock. It is also amazing that the carburetor was able to function reliably and had not been damaged by vibration.

Great find, and nicely tweaked and cleaned - to give function! Seems a really good machine. Nice job.

Another neat machine.. Thank you for sharing!

I love this Chanel. Good to see you back 🇬🇧

Nice job! Thank you. 👍👍❤️

Love watching the old machinery you are able to get running and use again, keep up the amazing work. Glad your back at it.

So good to see you back. What a machine, its always nice when all they need is a good clean and away they go.

Thank you for your videos! My first RU-vid channel and still my favorite.

Great machine there Richard ! Always good to see you bring them to life ! Best regards from Arizona USA ! 🌵

Wow, what dexterity! Well done!

Great to see you back. Missed ya!

I'll get one! My neighbors will definitely love it too!

How cool is that!

Great video Thanks

Interesting mechanism, and appears to be very effective!

Awesome effort getting it to run. And it looks like it can still do the job as well... Thumbs Up!

Nice piece there as usual and good to see you back.

Happy to see your still around! Missed your videos.

Great video. Good times.

I always look forward to your postings.. your logical approach to whatever problem you discover combined with your talent and mechanical skill are a joy to watch. I love that you preserve these various old and unique machines. Thank you for documenting this old rock drill and all of the other machines you’ve shown so far. I know you’ve “real” work to do and thank you for taking the time to record this. I’m looking forward to more of your returning the old and unique machines to a useful life . Ed Belledin Pennsylvania, U.S.A.

What a beauty!

Very interesting video on the old rock drill.

So glad to see you again. Truly enjoy all your videos. I do hope all has been well with you and your family, thanks for the videos!

it sooooo good to see you againg... Was a bit worried there fore a while.... Now you are back ....no worries. im happy!