Heller Duster Expert (SDS-Plus) extraction drill bit vs. regular bit + dust extr

[six-point socket II]

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.
https://vimeo.com/324981732

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

Kind regards,
Oliver

 

[six-point socket II]

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

 

[Bob D.]

Nice comparison.
Hilti makes extraction bits also, do you plan to try those too?

 

[six-point socket II]

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

 

[leakyroof]

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? 

 

[six-point socket II]

I guess it would be worth giving it a shot, when it happens.

Kind regards,
Oliver

 

[leakyroof]

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.

 

[six-point socket II]

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

 

[tallgrass]

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

 

[six-point socket II]

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.
https://vimeo.com/329102894

Kind regards,
Oliver