I have a Bosch hammer/demolition tool 11311EVS. The 5/8 drill SDS Max
in it drills concrete like butter. This Bosch does not rotate the
drill, only hammers it in a chipping action. The problem is that each
1/2 inch depth gets the drill bit stuck, as in you can't pull it out
of the hole without great difficulty wiggling and pulling and trying
to turn it clockwise and counterclockwise the slightest bit that it
would let me. All that motion is begining to hurt my back. I've
tried hammering a bit then pulling out to clear the bit of debris
every 1/2 inch but it still gets stuck. Is there some technique to
this, or am I just using the wrong tool? I don't think this demo
hammer has a rotary function. I'm only trying to drill to 2 1/2
inches in concrete. Some advise please?
Indeed it is not exactly the right tool. But using it again today for
drilling, I've found out that rotating the demo hammer around the
drill axis as it hammers does a decent job of simulating the drill
hammer. The bit was much easier to remove once my depth has been
achieved. This is the only tool I have close enough for the purpose
and in these tough times, it is not so easy to have exactly every tool
for every job especially if it is not used often enough to justify the
cost. Thanks anyway.
Use a shop while "drilling", it will help remove the concrete debris &
reduce the chances of getting the bit stuck in the hole.
You are kind of simulating the action of a "star drill" ...what used
to be used to drill hole in concrete before rotary hammers became
" If you're that poor, then you really shouldn't be doing home
*LOL. Yes it is a law that one must be at a certain income level in order
to work on his own house.
Actually I was quite surprised that his method is working, but when another
poster mentioned about the handheld star drills it reminded me of when I
worked for my dad in the 1960's. Before he bought a hammer drill we would
always make our holes in masonry for anchors by hand. I would continuously
bang the star drill while at the same time rotate it. This guy is doing the
same thing except the machine is doing much of the work.
Having been to a few third world countries and islands I was always amazed
how the locals would improvise with what they had to get things done. I
can't tell you how many times I have seen a piece of rope and a piece of
wood being used as a pipe wrench. In this country we have a tool for every
Did we have the same dad? ;)
I only did a very few holes with a star drill (in the 60's) but I sure
do appreciate having a couple rotary hammers now.
I left out the word "vac" as in shop vac.....your method is crude
Ignore the post about "being too poor" to execute DIY projects.
I guess that poster doesn't know about "making do" or how capital is
Did we have the same dad? ;)
I only did a very few holes with a star drill (in the 60's)
"but I sure do appreciate having a couple rotary hammers now."
*Amen to that. Cinder block and red brick wern't too bad by hand, but
concrete and concrete block took forever.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.