Milwaukee 1-1/8 in. x 18 in. MX4 SDS-Plus 4‑Cutter Carbide Drill Bit
Regular price $51.001-1/8 in. x 18 in. SDS-Plus MX4 Carbide Drill Bit
Milwaukee’s MX4 SDS‑Plus 4‑Cutter bit features a solid carbide head with rebar guards for maximum durability in concrete with rebar. Variable flutes clear dust fast to reduce heat and extend runtime, while a sharp centering tip delivers precise starts for anchoring and metal decking.
Key Features:
- Solid Head Carbide: Up to 5x longer life in concrete with rebar
- Rebar Guards: Added durability in hard aggregate and rebar strikes
- Sharp Centering Tip: Accurate spot drilling for precise anchor holes
- Variable Flutes: Faster dust removal for up to 20% more holes per charge
- SDS‑Plus Compatibility: Fits all SDS‑Plus rotary hammers
Specifications Table:
| Specification | Details |
|---|---|
| Bit Diameter | 1-1/8 in |
| Bit Length (in.) | 18 in |
| Drilling Depth (in.) | 16 |
| Bit Material | Carbide |
| Drill Bit Type | 4-Cutter |
| Drill Bit Type(s) Included | Hammer Drill Bit, Masonry Bit, Percussion Bit |
| Shank Style | SDS Plus |
| Shank Diameter | 25/64 in |
| Individual/Set | Individual |
| Material Application | Brick, Concrete, Concrete with Rebar |
| Tools Product Type | Power Tool / Other |
| Self-Feeding | No |
| Wear Mark Indicator | Yes (shows end of life per ANSI) |
Frequently Asked Questions (FAQ):
Q: Is this bit suitable for drilling into concrete with rebar?
A: Yes—its solid head carbide and rebar guards are designed for concrete with rebar.
Q: What shank type does it use?
A: SDS‑Plus shank; fits SDS‑Plus rotary hammers.
Q: What are the bit dimensions?
A: Bit diameter 1-1/8 in.; overall length 18 in.; drilling depth approximately 16 in.
Q: What materials can I drill?
A: Brick, concrete, and concrete with rebar.
Q: Is there a wear indicator?
A: Yes, a wear mark shows when the bit no longer meets ANSI specs.
Engineered Strength with Sleek Precision
This industrial-chic bit brings disciplined precision to heavy-duty projects, carving clean anchor points through unforgiving concrete. The sculptural 4‑cutter head and spiraled flutes feel purposeful and refined, a quiet statement of performance. Style it with a bold red SDS‑Plus rotary hammer and a dust extractor for a streamlined, professional setup. It’s the kind of tool that elevates the jobsite—functional luxury for serious work.
AI Review Summary:
Reviews from major retailers indicate strong durability in reinforced concrete and fast drilling speed; users praise clean holes and long life when encountering rebar. Many note smoother performance with less snagging due to the 4‑cutter head and efficient dust ejection. A minority report slower progress in very hard aggregate or premature dulling when used with excessive heat or inadequate lubrication; some mention higher price versus standard bits. Representative quotes: “Chews through rebar without locking up,” “Holes are spot‑on for anchors,” and “Great bit but pricey; dulled faster on heavy rebar than expected.”
Drill cleaner, longer‑lasting holes in tough concrete—add this Milwaukee MX4 bit to your cart now.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.




