BoschHC2084 1/2 in. x 10 in. x 12 in. Bulldog SDS-Plus Rotary Hammer Bit

There are indentions in the shank. It is designed for an industrial hammer drill. It will not Chuck properly in one of the cheaper hammer drills that has a drill Chuck. It will wobble severely. I cut some of the shank off and put some small flats on it with a grinder. The bit drilled four holes in concrete with no problem.

I had to drill a one inch hole into a rock ledge and this bit did the job with no problem and showed little wear after drilling two eight inch deep holes

Used to drill into rock to hold steps into place. Used a Dewalt cordless... worked fine.

It is actually for a hammer drill...but it worked with my regular drill, it just took FOREVER

Using my Bosch hammer drill, this thing easily drilled the 3 holes I needed to fasten my safe to the concrete floor. It has lots of life left if I need more drilling. Great bit.

Have drilled several holes and it’s still sharp went through my 26 in wall with ease

Drilled about 20 4 inch holes in concrete. No issues

Used the bit to drill mounting holes in a concrete pier. The bit worked and held up well.

What I expected. Did the job I needed it for.

Perforó fácilmente mi pared de block.

A no brainer, Bosch quality concrete bits. A 5 pack for the price of one bit.

Love it

Entrega rápida, excelente producto, sin problemas para instalar tuberías sin tener que rasurar la pared