Then and now - Router Forums
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post #1 of 18 (permalink) Old 09-25-2019, 07:01 AM Thread Starter
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The first shot shows a Rawplug chisel which was the way I as a young man and most other men in those days made holes in brickwork for plugging. This shot was taken off the web. The second shot shows what is left of mine, the working end was broken off many years ago when using it for what it wasn't intended for! In use it was hit with a hammer, rotated a few degrees then hit again, repeated until the hole was the correct depth.
We have come a long way since those days as shown in the third shot of my Bosch hammer drill.
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post #2 of 18 (permalink) Old 09-25-2019, 11:04 AM
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The first shot shows a Rawplug chisel which was the way I as a young man and most other men in those days made holes in brickwork for plugging. This shot was taken off the web. The second shot shows what is left of mine, the working end was broken off many years ago when using it for what it wasn't intended for! In use it was hit with a hammer, rotated a few degrees then hit again, repeated until the hole was the correct depth.
We have come a long way since those days as shown in the third shot of my Bosch hammer drill.
When I was a kid we used the Masonry Star Drills the same way you describe to drill into concrete, CMU, and Brick.
Sure improved now.
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post #3 of 18 (permalink) Old 09-25-2019, 11:57 AM
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I'm glad I missed those days...my Bosch Bulldog and a 3/4" SDS+ bit went into 6" of concrete like it was butter...never even had to push hard.

In the past I used a 1/2" drill and thought I was pushing the Queen Elizabeth away from the pier...LOL...

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post #4 of 18 (permalink) Old 09-25-2019, 12:21 PM
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Gotta love the evolution of tools.
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post #5 of 18 (permalink) Old 09-25-2019, 01:23 PM
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I used the rawlplug tool as an apprentice in the early sixties. You changed bits for what sized hole you wanted to make. Then you took a pinch of the rawlplug powder, spit in it and rolled it around in your hand untill it was mush and forced it into the hole. Then you screwed into it before it set rock solid.
My DNA is in hundreds of houses.

Those were the days.... NOT.
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post #6 of 18 (permalink) Old 09-25-2019, 02:33 PM
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Harry, I remember that there was a UK brand, similar in design, but that allowed one to use a masonry bit as the chisel bit. Supposedly to allow the break-up of hard stone chips in the concrete, when using an ordinary rotary power drill.
There was a hole in the side of the handle, into which a nail or some such could be pushed, to help eject the drill bit.
Never used one, as impact drills came into use about then.

I still have a star chisel, from when my father was in construction 50 years ago. Haven’t used it in decades, but still handy for particular jobs.
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post #7 of 18 (permalink) Old 09-25-2019, 10:12 PM
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I'm glad I missed those days...my Bosch Bulldog and a 3/4" SDS+ bit went into 6" of concrete like it was butter...never even had to push hard.

In the past I used a 1/2" drill and thought I was pushing the Queen Elizabeth away from the pier...LOL...
You didn't miss anything,nick. A 3# hammer to pound with, and if you missed the star drill ,you hit you hand, or if you drove into something hard,like a big rock or steel, the dril would vibrate so hard it hurt your hand even with gloves on. A glancing blow would mess up your thumb too.

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post #8 of 18 (permalink) Old 09-25-2019, 10:31 PM
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I'm glad I missed those days...my Bosch Bulldog and a 3/4" SDS+ bit went into 6" of concrete like it was butter...never even had to push hard.

In the past I used a 1/2" drill and thought I was pushing the Queen Elizabeth away from the pier...LOL...
glad you listened???
now go get the improved model and get down to business...
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post #9 of 18 (permalink) Old 09-25-2019, 10:37 PM
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My first mentor was a finish carpenter and he had mostly hand tools, That would be the later 40s and early 50s. I still have a couple of his and my dad's old tools. I remember a great manual miter hand saw with stand and mechanical guide. Dang, that thing was nice. Would enjoy having it today. I also remember a brace and bit that was a nice looking tool as well. But I'll stick with my various power drills.
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post #10 of 18 (permalink) Old 09-26-2019, 07:54 AM
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Yes, the hammer drill was certainly a big step up from concrete chisels although in my use of the hammer drill it would have been very useful to have portable x-ray as well. Worst job ever as related to drilling concrete was at a local church, the one my Grandmother was buried at, a stern and proper woman. The exterior was solid rock, then concrete. Depth of wall from 14-16", within reach of the drill and bits I was using. Holes needed to be 3" for the H/P line sets which consisted of 3/8" bare copper tubing and 1-1/8" insulated copper tubing along with thermostat wire from outdoor unit (heat pump condenser unit) to indoor unit (either evaporator coil and gas furnace (dual fuel) or air handler. The rock was a piece of cake but then the concrete offered a few challenges. I had 5 new systems to install and all but one went through the rock/concrete walls. The last was just a cinder block wall.

1st hole went well until about 2-3" into the concrete. Seems this church would withstand a nuclear blast, at least the walls I was drilling through. The concrete was rebar reinforced. Of the 4 holes through this wall I hit rebar in each and broke the 1st drill bit shaft on the 2nd. This wasn't your run of the day 1/2" hammer drill but rather the industrial version with the 18-20 drill shaft and screw on core bits, diamond tipped. And here my Grandmother was buried maybe 100 feet or so away greatly limited my murmurings not only because of where I was but who was likely looking over my shoulder.

In all I went through 2 drill shafts, took almost all day to do a few hours work, and was about to explode with anger for the "luck" of getting this job. The fifth hole went through like butter, was the last to be drilled and of course that wall was filled with vermiculite just for good measure.....thankfully I had something handy to stuff in the hole to stop the flow before I emptied the 30' tall cavity. The entire job was a trial for me and only days before I was to be married to my wonderful bride of 33 years and counting. Did I mention it was a cold rain for most of the job?

In the end I had to sleeve the holes going through the rock/concrete walls as there were good chances that there were sharp edges where the rebar was cut and the vibration over time of refrigerant flowing would have caused enough to eventually possibly cut into the copper lines and cause impossible to find leaks. A job I remember extremely vividly........
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