DongCheng 20V Max Cordless Rotary Hammer Drill, 7/8" SDS-Plus, 4 Application Modes, Brushless, 2.1 Joules, Cordless Demolition Hammer for Concrete, Including 4.0Ah Battery and Charger, 4 Drill Bits

I bought one of these drills and it performed beyond my expectations and within a week I bought another one. Good gravy for the price you just can’t beat it. I’ve been running both for a while now without any troubles. Drilling pilot holes for tapcons and sammys through steel and concrete. Blowing 1” holes through poured concrete walls. They’ve worked great. I’m not sure I’d venture to anything bigger than an inch or core bits.

Haven’t used as yet but it will definitely worth the buy

Works very good a plus that it's light in weight in my case i had to use it with one hand on top of a 13 foot ladder and a 12 inch long 4 inch core bit , used half of the battery life for a 4 inch core 10 inches deep

awsome

It is a nice quality product. The only thing is that it is too light for my use, The battery depleted pretty quick and it takes a little north of two hours to fully charge it again. If you intend to use it on an occasional basis, go ahead and purchase this, it is perfect. If you are like me, Contractor either purchase another battery or go with a corded product

I owned a Bosch 18V rotary hammer drill and it got stolen from my truck. So I was very reluctant to buy this inexpensive drill but figured I couldn’t go wrong with the Amazon return policy. Well it didn’t disappoint, the drill is just as powerful and if not even more powerful than my previous one. The battery also lasted unexpectedly long on a job site. Overall a great purchase! Now I just hope it lasts a while without breaking down.

Don’t waste your money on this hammer drill. Poor quality and not strong enough. Also the battery doesn’t last enough. It last less than 10 minutes

As a first time sds user am impressed with the power of sds bits to penetrate concrete compared to a regular cordless hammer drill with chuck. The possible drawback of not accepting regular bits can be overcome by getting an sds drill chuck adapter for non hammer use only. Could drill about 10 1/2"x6"deep holes in hammer drill mode before the battery was down to 50% or 2 out 4 LEDs. This is probably when I am ready for a break. The charger shows a red light when charging, green steady when charged, and green blinking when battery is removed. The battery 4 bar led is a nice indicator of remaining charge. Like almost all tool brands this uses a unique style of battery. It would be an advantage if you could interchange batteries.