Milwaukee 3/4 in. x 21 in. MX4 SDS-MAX Carbide Bit
$62.97
Reduce breakage possibilities while drilling holes in concrete or brick by choosing this Milwaukee MX SDS MAX Carbide Bit. Ensures accuracy and durability.
In stock
Description
The Milwaukee SDS-MAX 4-Cutter MX4 3/4 in. X 17 in. X 21 in. Drill Bits feature solid carbide heads that deliver up to 5x longer life in concrete with rebar. Engineered with rebar guards to provide maximum durability in hard aggregate and rebar. MX4 4-Cutter bits are designed with sharp centering tips for exact spot drilling in concrete. The integrated 4-cutter design prevents lock-up in rebar, reducing downtime. Variable flutes remove dust faster, reducing heat and delivering up to 15% more holes per battery charge. Wear mark indicator shows users the end of life when the bits no longer meet the ANSI requirement. The Milwaukee MX4 4-Cutter Drill Bits are ideal for concrete with rebar and masonry applications.
- 4-cutter design prevents lock-up in rebar, reducing downtime
- Variable flutes remove dust faster reducing heat & delivering up to 15% more holes per battery charge
- German made
- Meets ANSI B212.15 to fit common anchors
- Wear mark indicator to show end of life and when bit no longer meets the ANSI requirement
- Ideal for concrete with rebar and masonry
- Fits all SDS-MAX rotary hammers
Additional information
| Weight | 1.6 lbs |
|---|---|
| Dimensions | 1.70 × 1.70 × 24.40 in |
| Assembled Depth (in.) | .8 in |
| Assembled Height (in.) | 21 in |
| Assembled Width (in.) | .75 in |
| Bit Diameter | 3/4 in |
| Bit Length (in.) | 21 |
| Bit Material | Carbide |
| Drill Bit Type | 4-Cutter |
| Drill Bit Type(s) Included | Hammer Drill Bit, Masonry Bit, Percussion Bit |
| Individual/Set | Individual |
| Material Application | Brick, Concrete |
| Model | 48-20-8432 |
| Self-Feeding | No |
| Shank Diameter | 45/64 in |
| Shank Style | SDS Max |
| Tools Product Type | Power Tool |
Reviews (43)
43 reviews for Milwaukee 3/4 in. x 21 in. MX4 SDS-MAX Carbide Bit
Only logged in customers who have purchased this product may leave a review.
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Jamir Powlowski (verified owner) –
Milwaukee is the bestNo question!!!
Kianna Greenfelder (verified owner) –
It did the job that I wanted to do, drilled the hole through the foundation for a drain pipe.
Devan Oberbrunner (verified owner) –
I needed to drill a bunch of 2″ deep, 3/4″ holes in a well cured concrete slab. This bit did a great job, drilling the holes in no time. I found that I got the best results if I supported some of the weight of the drill. The entire weight of the drill was too much pressure on the bit for optimum drilling speed.After a dozen holes, you could hardly tell the bit had been used. This is a well made bit, and I expect to drill a lot of holes with it. It should easily last me for the rest of my life…
Destany Gerlach (verified owner) –
When I ordered this SDS MAX drill bit I thought the MAX as the name of the bit not knowing that there are 2 sizes of sds drills. SDS PLUS and SDS MAX are the 2 sizes they have different size shanks.Yes there adapters to go from one size to the other, I would only recommend that if you have the larger size SDS MAX to reduce to SDS PLUS other wise you may over work you drill and destroy it.This drill bit was tested on a GRANITE BOULDER and it went 15″in ONLY 90 SECONDS!!!!I actually had to buy a new SAS MAX hammer drill and I got one from Harbor Freight, this 4 cutter drill bit looked like brand new after the test hole. Imagine how fast it could go through concrete witha more powerful drill. I would HIGHLY RECOMMEND this Milwaukee bit to every one who needs to get hols done quickly!!! I am a HUGE Milwaukee tool fan and I have had only good luck with ALL of thier tools as well as drill bits and saw blades.
Pablo Rowe (verified owner) –
this review is after one use only, well made
Wyman Towne (verified owner) –
Great bit, well constructed, even has a little flex to it so you can drill at an angle. Milwaukee products always deliver!
Rickie Kris (verified owner) –
The Bosch was a better bit
Luella Schneider (verified owner) –
Awesome, works great!!!
Stephany Breitenberg (verified owner) –
Drills good
Mittie Ullrich (verified owner) –
Very well made as are all of Milwaukee’s tools. SDS tools are easy mounting and easy to remove, no keys necessary. These bits cut like a dream. Shank is precision ground to fit SDS MAX tools. Very fast and smooth cutting. The way the carbide is shaped and sharpened it should hold up for a lot of holes.Photos would show little so I have none with this review.
Fred Schultz (verified owner) –
Excellent performance
Ally Nader (verified owner) –
Awesome drill bit, amazed it does exactly as stated. Blew threw concrete and rebar.
Meggie Beatty (verified owner) –
Expectacular
Hoyt Prosacco (verified owner) –
This is a well made (in Germany) concrete bit (suitable for rebar contact) for use with SDS-MAX hammer drills. It is advertised as a 4 cutter bit, two full width and two partial (see photo). The “variable flute” design (which is deeper than other bits I have used) results in faster and more complete evacuation of drilling “dust” from the hole being drilled, with less frequent need to pull the drill out of the hole to clean the hole. The carbide protrusions on the side (for encounters with rebar) are longer in length and do not stick out as far as other bits, increasing their resistance to damage. I did not get a chance yet to see how it performs with rebar present, but in an unreinforced 4 inch concrete slab, it drilled through like it was butter. All four of the cutting surfaces communicate with the flutes, for material removal, not just the primary full width cutters. The manufacturer claims 20% faster drilling than others, and, based on the reduced frequency of stopping to remove the drilling residue alone, I have no reason to doubt it.
Arnold Fadel (verified owner) –
This bit is awesome, fast cutting and low vibration, it made easy work of my project.
Erna Gottlieb (verified owner) –
very easy to use
Dameon Smitham (verified owner) –
Excellent
Marley Gulgowski (verified owner) –
i had purchase 3 sizes and the 3/4 was not needed but the 5/8 and the 1″ have been fantastic, goes thru concrete like wood and if it hits the steel it does not break
Concepcion Sipes (verified owner) –
I needed to get a hole in a brick wall for a new gas line. This bit really did the job. Made short work of a big job.
Brice Christiansen (verified owner) –
Bit’s lifetime could be better, 9 holes and it was dead.