Customer Reviews for 8'' Diamond Core Drill Concrete Drilling Machine with Stand & Drill Bits 3980W

This is perfect for drill in the ground for my tulip bulbs. It’s a little had to mount to loose soil so sometimes I just holed it in the air.

This is a powerful tool. With the correct diamond core bit, it will do the job. I broke my shoulder rest and will need another one.

For the price it is very good, ..................did the job that it was expected to do.

I bought this to make holes in a new lava-rock/concrete wall so I can mount an aluminum fence with 2" posts. I didn't get to use it until today and I am really impressed with how well it worked. I only drilled 3 holes because I was learning how to use it but it really was easy. A couple things about how I'm using it.First, I'm not bolting it down like you're supposed to. Instead, I have a 3 foot long 3x4 with a bolt through one end to locate the 2x4 in the drill stand. It's not bolted to the drill, the bolt in the 2x4 just sits in the slot on the drill so the 2x4 won't come out while I'm using it. The other end of the 2x4 has a small piece of 2x4 attached so that the longer 2x4 is essentially level when it's on the drill base. When using the drill I just sit on the 2x4 in order to secure the drill.The second thing is I adjusted the gibs on the drill head so the head can slide very easily and I just use gravity to feel the core bit. The whole setup takes less than 5 minutes to drill and 8 inch deep 4 inch diameter hole.I've got a few hundred holes to drill, hopefully it will last. :)

used it it drill 2 8" holes through 7" re-enforced concrete walls. Heavy to place but powered right through. Can't tell you about longevity as I only have 2 holes right now - but this with an 8" bit was far cheaper then pro-drillers and the result is perfect - took about 30 minutes per hole - going slowly. You have to monkey around with the water feed though - not difficult and not that messy if you are careful

Excellent product, terrific price. Would recommend 100xs over. Just what we needed for core drilling.

Seems like a great product at a great price. Have not actually used it yet, but the visible quality looks solid and reliable.Item arrived damaged, but it was due to shipping damage. It's quite heavy and awkward and the delivery people or machines messed up the packaging. The main base, although solid metal, had a piece broken off. However, the shipper/manufacturer was very responsive and immediately sent me a replacement base without further action or cost on my part.Very satisfied with my purchase.

Works as advertised. No issues at anytime.

Functions well, motor seems pretty powerful. Would like to see a variable speed trigger, a larger base, and better water inlet setup(made my own). But damn if it dosent drill some holes. Got my $ out of it for sure!

Cored a 4" diameter hole through 10" of concrete and precast deck without an issue. Make sure to keep it well flooded with water - if the diamond loads up you can overheat your cutter.