Ever tried to drill a hole in concrete with a non-hammer drill?

[e9999]

I have to drill some holes in concrete, 1" deep or so, but I don't have the space to use my SDS hammer drill or even a smaller regular drill with pseudo hammer function either. I only have something like 4" for the drill and bit to fit sideways so to speak. Picture a narrow concrete trough drain that I need to get into and drill sideways into the walls. I could possibly use a right-angle drill with a very short bit, but I don't know of any hammer right-angle drill or adapter. So my question is: is it feasible to drill a hole in concrete with a carbide bit using just rotation and no hammering at all?

 

[Redgrrr]

Try a tile bit and cut it off to make it fit in a 90 degree drill with a chuck, buy a few and expect to burn them up quick. I use a pickup bulb similar to a turkey baster to slowly drip water and keep the bit cool. Use a pry bar to get good consistent leverage on the head of the drill.

 

[e9999]

thanks. So you think these pointy tiles bits are better for this than regular masonry bits?

 

[PAToyota]

I was going to suggest tile bits too. The masonry bits are designed to work with the impacting of the driver. The tile bits are designed to work with a normal (non-impact) drill and basically abrasion to make the hole - impact would break the tile.

 

[Redgrrr]

thanks. So you think these pointy tiles bits are better for this than regular masonry bits?

I would never use this type of bit in normal circumstances where a hammer carbide tip would literally pulverize the material in front of it.

These bits in my opinion are produced to cut low speed without hammer.. Keep it cool with low speed and it will cut.. I’d cut off a cheaper hammer drill bit I had on hand and chuck it up in a 90 degree drill that fits the location as well. Both have different cutting properties. Chuck up a hammer drill bit in a non hammer drill and see how it cuts through the material. Usually they heat up and ruin the carbide tip…

 

[e9999]

may try this. Thanks.