1-1/4" SDS-Plus Rotary Hammer Drill

The Berserker has turned out to be a great tool for the price. With the provided bits, I can drill through concrete and cement with ease. The chiseling function would be great for tile demolition or other light duty projects, but not for concrete.

I’ve been trying to chip up a concrete walkway and this isn’t the tool for that. I’ve barely chipped a square foot and the chisel that came in the pack is already dull. Also, I noticed that after a few minutes of use the Berserker unit gets very warm.

It weighs in at slightly less than twelve pounds, which feels comfortable for what I’m asking it to do. For those keeping score, this hammer drill is rated at 0-920R/min with an impact rating of 4250BPM.

Outside of a construction site, hammer drills aren’t an everyday item in most households, so you don’t want to spend a fortune. This meets my home-use needs nicely. Overall a very good tool for lighter duty projects (not on the scale of chipping up a sidewalk).

This is a beast of a machine, at around 12 pounds it is heavy, but well balanced when operating it with two hands. The SDS plus (which are compatible with regular SDS) bit are super easy to put in the take out and provide a very secure installation. SDS+ bits are a little harder to find in the hardware store, but you can usually find some Bosch bits, and it comes with 3 common drill bit size as well as two types of chisels.

I mostly needed a tool to mount things on my concrete exterior walls, and having the chisel/hammer would be useful for any future tile projects. In the past, I've had tried cordless drills into concrete and it was a difficult and often fruitless effort to make any progress. So while I expected this drill to do the job I wasn't prepared to be amazed at how quickly and easily it did the job. Between the raw power, the non slipping drill bits and the well balanced handling... the hardest part of the job became the easiest.

I have used many top drill bits, but their quality and power cannot be compared with this one. I like to use them.

I needed to drill some pilot holes in my wall when the traditional drill i had was making no headway. I did a little research and settled.This was a great buy.This tool with all the options made the job I was doing very easy.It has a powerful motor and the hammer drill feature made drilling through the Mason in the wall simple and easy.If you are looking for a hammer drill, or a regular drill in which this drill does both.This is the drill for you.It comes with a number of assories in which you can start your project right away.

It is solid and compact. One item of note is its consumption of grease. As others have noted, it does devour grease as you use it. So, you will need to pick up some grease for future use, as the tiny tube they provide in the box will get you nowhere. Regardless of that point, I would highly recommend this tool for smaller demo jobs.

If you are like me, I didn’t know the difference between a rotary hammer drill and my regular drill with a hammer function. I was having a problem drilling four ½ diameter holes 4 inches deep in 25-year-old concrete. A friend loaned me a rotary hammer drill. Wow, what a difference, what I spent 3 hours trying to do without success, I finished in about 10 minutes with the rotary hammer drill. I couldn’t believe it and I couldn’t understand why the rotary hammer drill did so much better than my hammer drill.
Since then, I discovered the difference between the two. A rotary hammer drill is specifically designed to provide far more impact than a hammer drill. I learned that rotary hammer drills generally use an SDS-Plus drill bit. This is an industry standard bit retention system that uses slotted shank bits to easily lock them in the chuck. They are generally used for concrete drills. The SDS system locks the bit in rotation but allows it the freedom to slide roughly ½” along the shank. Most rotary hammer drills use a gear-driven crank that moves a piston back and forth within a pneumatic chamber. Compressed air propels the bit forward creating the concrete obliterating impact force of this type of hammer drill. Drilling concrete with a rotary hammer drill is night and day different that your typical drill with a hammer function. Since my experience with the concrete holes that I couldn’t finish, I’ve been searching for a reasonable priced tool. This Berserker is it. It drills through concrete like butter.

The tool comes packed in a nice blow-molded plastic case, with carrying handle and latches. 3 drill bits, 8mm, 10mm, 12mm which corresponds to roughly 5/16”, 3/8” and 1/2” plus 2 chisel’s, one pointed and the other a flat blade type (13/16” wide blade), both have approximately 8.5” working length. The drills have 4” working length, single flute, with carbide brazed to their cutting end.
Tool specs:
11.6 pounds, 120VAC, 60Hz, 12.5 amp, 920rpm max. Specified max drill size is 32mm (1.25”)
16 AWG SJ cord, feels like a rubber jacket, but jacket material is not specified. Cord is slightly longer than 6.5 feet. A little short as is typical for corded tools, just need to use an extension cord. For 25 feet, a 14-gauge copper extension cord should keep the voltage drop to a minimum.

Six page instruction booklet is clear, easy to understand and covers all the operations.
There is only 1 knob to select 4 different functions. (Drill, Hammer drill, Chisel sliding, Chisel fixed)
A dial near the bottom of the handle sets the maximum speed a range from 1 to 6. At 6 there is a definite click that I assume bypasses the speed control for full speed.

Variable speed on trigger is almost non-existent. After playing with it I noticed that just barely turning on the tool it runs at about ½ speed. Beyond that the trigger is more of an on/off switch and runs the tools at the maximum speed set on the speed control dial. The dial speed control is very nice and provides a good range of speed.

I ran the tool without a bit for about 5 minutes to learn the functions and test the speeds. It is smooth and has a good amount of torque. The bits are easy to install, pull back on the chuck head and slide the tool in place, release the head and your set. There are many SDS-Plus drill bits available on Amazon and I plan to get more sizes. Additionally, this kit comes with an extra set of brushes and tool lube. There is a holder for a depth gauge but no rod is supplied, I think a ¼” steel rod should fit fine.

Overall, for about 1/3 the price of a name brand with similar features this is a fantastic tool. I don’t need to drill concrete more than a few times a year but when I do this works marvelous.

This is a serious tool. I never heard of this brand before, but I have taken note. It is hefty. It is well built. It is not excessively noisy. It has all the standard rotary hammer features. It made short work of a bunch of 1/2 inch holes in concrete. Not too much vibration while operating it. This is a good quality tool at a great price,