Drill through rebar with SDS shank drill.

[fredand44]

Hello

I'm drilling through the slab on a concrete floor with a 14 mm diameter to pull a cable through. The hole length will be about 25 cm when finished. I have now reached about 20 cm but hit a rebar.

I'm using a regular concrete drill with an SDS mount and what I believe is a standard concrete hammer drill bit/tip, meaning a slightly harder metal bit at the tip. It doesn't seem to get through the rebar.

I got a tip that there are:

hss drills, i.e., high speed steel drills

or multipurpose drills

or carbide tip drills

...all with SDS mount.

I chatted with Bauhaus, and they first recommended this:

https://www.bauhaus.se/hammarborr-b...07865&indexName=nordic_production_sv_products

Even if it's too short, there's a video clip showing how it goes through the rebar. So the brand and design are very interesting.

Unfortunately, they didn't have the right dimension that I wanted. Ideally, it would be 14mm in 400 mm length so you can really get through. BUT it's also SDS plus; I only have SDS.

So now the question is if there are equivalent drills that can go through rebar with an SDS mount?

Best regards

Fredrik

 

[Totte_S]

It should be a four-edged hammer drill of reasonable quality. There are long drills with a regular SDS mount, used a 90 cm long 26 mm one the other day.
Unfortunately, it is often professional shops that have it in their assortment, and often in the special order assortment. Do you have access to any form of wholesaler, construction/electrical/plumbing/tile?
Most professional groups need to drill.

 

[Robert-san01]

SDS and SDS+ are the same. SDS Max is the larger chuck.

All Bosch 4-blade drills with "solid" crown should be able to handle both steel and concrete.

 

[fredand44]

SDS and SDS+ are the same. SDS Max is the larger fitting.

All Bosch 4-cutter drills with a "solid" crown should be able to handle both steel and concrete.

Really! I had missed that! Then I'll check with Bauhaus again!

 

[fredand44]

It should be a four-fluted hammer drill of reasonable quality. There are long drills with a regular SDS shank, I used a 90 cm long 26 mm one the other day. Unfortunately, it's often professional stores that have it in their assortment, and often only in their special order assortment. Do you have access to any type of wholesale company, construction/electricity/plumbing/tiling? Most professional groups need to drill.

I'll try to google and check with Bauhaus and others. Sounds promising!!

 

[Kane]

Hello

I'm in the process of drilling through the voten on a concrete floor, 14 mm in diameter, to pass a cable through. The length of the hole will be about 25 cm when finished. I've now drilled through about 20 cm and hit a reinforcement bar.

I'm using a standard concrete drill with an SDS shank with what I believe is a regular concrete hammer drill bit/tip, a harder piece of metal at the tip. It doesn't seem to get through the reinforcement bar.

I was advised that there are:

hss drills i.e. high speed steel drills

or multipurpose drills

or carbided tip drills

...all with SDS shank.


I chatted with bauhaus and they first suggested this:


[link]


Even though it's too short, there's a video showing how it gets through rebar. So the manufacturer and design are very interesting.


Unfortunately, they didn't have the right size I wanted. Ideally, it would be 14mm in 400 mm length to really get through. BUT it's also SDS plus, and I only have SDS.


So now the question is if there are equivalent drills that can get through rebar with an SDS shank?


Best regards

Fredrik

There are long ones, https://www.bosch-professional.com/se/sv/expert-sds-plus-7x-hammarborr-2867204-ocs-ac/

 

[anders07]

https://www.bauhaus.se/hammarborr-dewalt-xlr-sds-plus-14x460mm

 

[Dilato]

SDS-plus fits well in SDS?
EDIT: kind of 3rd to the ball😮

 

[fredand44]

[link]

I think I'm going to go for this one.

 

[fredand44]

Huge thanks for all the quick responses! Now I've learned that SDS plus should work too! It even looks like Bauhaus has a good drill. Once again, big thanks to everyone!

 

[Harald Blåtumme]

I've been using the Hilti TE-CX in reinforced concrete, even fairly coarse like 25mm diameter through a 50-year-old reinforced concrete slab. These bits eat through concrete and rebar like nothing, you don't even need particularly powerful rotary hammers: https://www.hilti.se/c/CLS_POWER_TOOL_INSERT_7126/CLS_CONCRETE_MASONRY_DRILL_BITS_7126/r4429

 

[roke]

Please update on how it's going. Hope you haven't encountered too much reinforcement.

 

[fredand44]

Please update on how it goes. Hope you haven't encountered too much reinforcement.

Order placed, should be available for pickup this Friday.

 

[fredand44]

I have now tried the new drill. Attached is a video clip for anyone who wants to see.
Worked really, really well! Many thanks for all the tips.
Best regards,
Fredrik