Author Topic: Heller Duster Expert (SDS-Plus) extraction drill bit vs. regular bit + dust extr  (Read 1908 times)

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Offline six-point socket II

  • Posts: 1012
  • aka @the_black_tie_diyer
Hi!

I promised this a while ago on another forum, but maybe its also of interest here. :) - I finally got around to make the video.

Heller Duster Expert (SDS-Plus) 10mm extraction drill bit.









Concrete test cube C45/55.



I chose a Hilti TE-C over the TE-CX for the regular drill bit as it seemed more appropriate.

I drilled two holes with the Heller Duster Expert, one using only the drill bit's dust extraction ports. And one using the additional drilling dust nozzle. Then I drilled 2 holes with the regular drill bit. One without dust extraction, one with the drilling dust nozzle.

My personal opinion: while the extraction drill bit is maybe a tad bit slower, the amount of dust/debris collected through it is enormous and well worth it. Add a drilling dust nozzle and it deserves the title: dust free. Never mind my little mistake when I accidentally blocked the tube on blowing out the first hole.

Here's the video.



And two more pictures of the extraction drill bit, after drilling the holes.






Kind regards,
Oliver
Kind regards,
Oliver

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Offline six-point socket II

  • Posts: 1012
  • aka @the_black_tie_diyer
Hi!

Just used my inspection camera to take a peek into the holes.  [scared] [eek] [big grin] [big grin] [wink]

















You can see very clearly that the holes drilled with the extraction drill bit are much cleaner than those with the regular drill bit.

Kind regards,
Oliver
Kind regards,
Oliver

Offline Bob D.

  • Posts: 1229
Nice comparison.
Hilti makes extraction bits also, do you plan to try those too?
-----
It's a table saw, do you know where your fingers are?

Offline six-point socket II

  • Posts: 1012
  • aka @the_black_tie_diyer
Hi Bob,

Have to go with maybe on that. I have quite a bit of tools for testing and upcoming projects, so a more extensive test/review of different extraction drill bits would have to wait.

I bought that Heller for a specific use during my latest project, but had to learn I couldn't use it because of the mix of materials and risk of clogging it's extraction channels when drilling through EPP and the like. So I had to come up with something else since I had promised the review/test.

Kind regards,
Oliver
Kind regards,
Oliver

Offline leakyroof

  • Posts: 2280
Hi Bob,

Have to go with maybe on that. I have quite a bit of tools for testing and upcoming projects, so a more extensive test/review of different extraction drill bits would have to wait.

I bought that Heller for a specific use during my latest project, but had to learn I couldn't use it because of the mix of materials and risk of clogging it's extraction channels when drilling through EPP and the like. So I had to come up with something else since I had promised the review/test.

Kind regards,
Oliver
. Oliver, that brings up an interesting point. What does one do to unclog one of these bits if it happens?  Stiff thin wire? 
Not as many Sanders as PA Floor guy.....

Offline six-point socket II

  • Posts: 1012
  • aka @the_black_tie_diyer
I guess it would be worth giving it a shot, when it happens.

Kind regards,
Oliver
Kind regards,
Oliver

Offline leakyroof

  • Posts: 2280
I guess it would be worth giving it a shot, when it happens.

Kind regards,
Oliver
. At any rate, thanks for bringing these bits to our attention. I can see where they really save time if you need to insert an adhesive in the newly drilled hole before placing a fastener next.  Less dust is always a good thing.
Not as many Sanders as PA Floor guy.....

Offline six-point socket II

  • Posts: 1012
  • aka @the_black_tie_diyer
Yes, that's what they are made for. Quite a few adhesive/fastener manufacturers now allow users to skip brushing/blowing out the hole when these extraction drill bits are used.

Especially for Germany, I never understood why they would require M-type extraction for working on/with concrete, and then brush and blow out the hole spreading the finest of dust basically everywhere. Sure, in a perfect world people would then have worn their PPE for that step ...

Anyone placing corresponding chemical or even some regular anchors/fasteners in concrete will see the huge time saving factor using these drill bits.

Kind regards,
Oliver
Kind regards,
Oliver

Offline tallgrass

  • Posts: 862
Interesting. They look like my flood coolant tooling. Instead of shooting coolant they evacuate dust. Cleaver , I like it.

Offline six-point socket II

  • Posts: 1012
  • aka @the_black_tie_diyer
I was asked for this in private, here's a split-screen video with marked drill bits for a better evaluation/comparison of speed/ progress.



Kind regards,
Oliver
Kind regards,
Oliver