BoschHC2064 3/8 in. x 10 in. x 12 in. Bulldog SDS-Plus Rotary Hammer Bit

This bit made simple work of an extremely difficult job. I was drilling a pilot hole through an 8"+ foundation that was old and full of boulders for aggregate. The stone inside this foundation was much more difficult to drill compared to poured concrete foundations of today with small aggregate stone.I was originally using a bit that came with the hole saw on a rotary/hammer drill and it was a labored effort and was making extremely slow progress. I swapped to this Bosch Bulldog bit and I was able to drill through the foundation in Hammer mode nearly effortlessly;.This bit is high quality, and there is a difference when compared to lower end bits that are typically included with inferior products.Spend the money on quality when it comes to stuff like this and your arms, hands, and back will thank you and make easy work of a hard job.

Drilled a dozen holes in my concrete driveway, some parts were 10" thick. Still works.

Drills a nice clean hole in brick.

One of my main jobs is basement wall crack repair which requires drilling into concrete. I have found that these drill bits last longer than most and this price for a wearable part is very helpful to my bottom line.

Good bit.

Bosch bits are always my goto for my Hammer drill, great price and the bit last along time.

I tried numerous block and concrete drill bits. Spent 30 minutes with other bits to drill less than an inch into a solid rock. This bit drilled down six inches in less than 2 minutes. It is still sharp and drills well.

Works great

good

excellent