Masonary drill bits

[A K]

I have used 2 different brand of masonary bits.

I can not even drill one hole before it becomes dull.

I used both a regular drill and a hammer drill.

Geez.

Andy

[Ed Pawlowski]

Are you using a good carbide tipped bit or a cheap steel? At work we used carbide bits to drill into concrete to anchor machines and did dozens of holes with the same bit.

A good rotary hammer drill with SDS bits should last for many holes. If you bought the bits at the dollar store you got what you paid for.

[A K]

Yes. I used a Century Tungsten Carbide bit.

Andy

[Rod Speed]

Only in an SDS Plus drill. They do things differently to simple hammer drills.

[A K]

It is hammering. Even if it wasn't, the bits are still designed for regular drills.

I did find out that they are for cinder block and bricks.

I bought some Bosch Blue Granite Turbo bits. They are designed for concrete and granite.

Andy

Andy

[Ed Pawlowski]

About a dozen years ago we had a guy in maintenance that was a little slow at times. One day he had a project to do and came to the supervisor and complained that the drill bit was dull. The supervisor sharpened it and gave it back. A few minutes late, the guy comes back and laughs, "Joe you can't sharpen a drill for shit!" You can guess the rest.

[A K]

Found the right bit for my app.

"

" I also use water for cooling.

Andy