BLUEROCK Model 4Z1 Concrete Core Drill & 1"-4" Bit Set - PACKAGE DEAL

The drill with 4 bits. This setup works amazing!!!! Great product

In the process of building our retirement home we have made so many purchases that I have not had time to write reviews for every item we've acquired. This coring drill is such an exceptional machine that I had to take a few minutes to share a few thoughts. First, we purchased this drill as a one time use machine. Since its cost and the cost of the bit were less than the cost of renting a machine and bit, we purchased rather than rented. For the price, I expected something that would do the job and then be somewhat worn out. How pleasantly surprised we were to receive a smooth, quiet, and powerful machine that performed really well. With little more than moderate pressure and a little patience, (10 minutes or so each), we had three 3 inch holes in 6" cured, fiber reinforced concrete with imbedded rebar. I have to think this drill would make the cut for industrial use. One niggling little thing - as others have reported, we too got a shower from the water hose. While the knob for the side grip handle had to have been tightened by King Kong, the screws holding the hose to its fittings were little more than hand tightened. We'll take half the blame for the shower because we had fair warning, but the people on the assembly line should really pay closer attention to this detail. It would take so little effort to avoid creating an unnecessary and annoying distraction from what is otherwise a really fine package. We took less than a minute to tighten the screws and all was well. We'd buy this drill again.

Powerful and made easy work of drilling with a 4" coring diamond bit. Keep it straight and level because if it gets stuck its not fun then. Fit perfect around a 3" pvc pipe with just enough wiggle room for a coupling.

This seems to be a good drill and bits for our intended use. If we were using every day maybe would have gone with a more expensive name brand.

Unbelievable value!! This drill paid for itself the very first time. Why bother buying a Hilti? This thing is great!! Plenty of power. If the drill is starting to bind, the tool gives plenty of audible feedback to straighten out or back off. 10+ cores with the 3" bit with no signs of slowing down yet, just scuffing off the paint. Only thing I'd say could be improved is the water feed hose, valve and hose fitting but its good enough. The drill and bits are AWESOME! This is the best value for a core drill you will find out there. Buy it.

Used the 4Z1 with a 4" core bit to go through a block wall (Kitchen ventilation)....perfect results. Did not use the water hose due to possible contamination of ceiling and instead used strong vacuum around driller with excellent evacuation. My friends are totally impressed. Thanks Bluerock.

Drill is working great. I haven’t tried wet drilling yet but dry drilling is going very well. I would recommend

We used this wet core drill to drill 15 holes through 24' of stone to run line sets for ductless split ac systems. Very time consuming but used low speed and plenty of water. The installers were impressed.
Great drill for the price. I'm planning on buying at least one more.