Key Features
Rebar-Ready Head The impact-resistant 4-cutter full carbide head is built to keep drilling when you hit rebar, so you are not swapping bits mid-hole. Cooler, Longer Life Dura-Carbide is engineered for high-heat drilling in reinforced concrete to reduce premature edge failure and keep the bit working longer. SDS-Plus Hammer Drilling The Diablo 1/2 in x 6 in x 8 in Rebar Demon SDS-Plus 4-Cutter Full Carbide Head Hammer Drill Bit (25-Pack) is made for fast hole-making with an SDS-Plus rotary hammer for anchors and hardware in concrete.
Overview
The Diablo 1/2 in x 6 in x 8 in Rebar Demon SDS-Plus 4-Cutter Full Carbide Head Hammer Drill Bit (25-Pack) (Model DMAPL4185-P25) is an SDS-Plus hammer drill bit designed for drilling anchor holes in reinforced concrete. If you routinely hit rebar and are tired of slowed drilling, broken tips, and blown-out holes, this bit is built to stay on line and keep cutting.
The full carbide head uses a 4-cutter layout that takes smaller bites when it contacts rebar, which helps control wear and reduce vibration. That matters when you are drilling a lot of 1/2 inch anchor holes and need consistent diameter and clean, dependable results.
Diablo pairs that head with Dura-Carbide and a Tri-Metal Fusion Welding process intended to keep the carbide head intact under repeated impact. In plain terms: it is built for the kind of drilling that kills standard 2-cutter bits, especially when the hole path crosses reinforcing steel.
The flute design is optimized to clear dust faster, which helps keep the cutting end cooler and keeps the bit biting instead of glazing. There is also a wear mark indicator so you can quickly spot when the bit is past its useful life for accurate hole sizing.
This is an SDS-Plus shank bit meant for corded or cordless SDS-Plus rotary hammers. It is a purpose-built option for contractors who drill reinforced slabs and walls, set anchors all day, or do mechanical and electrical installs where rebar encounters are common.
Drill Through Rebar Without Babysitting the Bit
Rebar is where ordinary concrete bits go to die. The Rebar Demon head design is made to stay stable when it meets steel, so your holes stay accurate for anchors.
- 4-cutter full carbide head for controlled wear and reduced vibration
- Precision tip for stability and accuracy at the start of the hole
Cleaner Holes, Less Heat, Less Downtime
Fast drilling is not just power, it is dust removal and heat control. This bit is designed to clear dust efficiently so the head stays cooler and cuts longer in concrete.
- Optimized flute design to remove dust faster
- Wear mark indicator helps maintain proper hole sizing for anchors
What’s in the Box
- (25) Diablo Rebar Demon SDS-Plus 4-Cutter Full Carbide Head Hammer Drill Bits, 1/2 in diameter x 8 in overall length (DMAPL4185-P25)
Key Specifications
| Diameter | 1/2 in |
|---|---|
| Overall Length | 8 in |
| Working Length | 6 in |
| Shank Type | SDS-Plus |
| Cutter Count | 4 |
| Pack Quantity | 25 |
| Made In | Switzerland |
| Drilling Materials | Reinforced concrete, concrete, rebar, brick, block |
Compatibility
Rotary Hammer Chuck SDS-Plus shank for SDS-Plus rotary hammers (corded or cordless).
Built For
Reinforced concrete drilling Rebar encounters Anchor setting Mechanical and electrical installs Construction Masonry
Pro Tip
When you are drilling deep anchor holes, pull the bit out a couple times as you go to clear dust. Better dust clearing keeps the head cooler and usually drills faster with less binding.
Warranty & Support
No manufacturer’s warranty.
Tool Nut’s Take
Tool Nut’s Take
Diablo 1/2 in x 6 in x 8 in Rebar Demon SDS-Plus 4-Cutter Full Carbide Head Hammer Drill Bit (25-Pack): made for the jobs that eat normal concrete bits
If you drill a lot of anchors in reinforced concrete, this is the kind of bit that saves time because it keeps working when it hits steel.
- Who it’s for: Contractors and installers drilling 1/2 inch holes for anchors in reinforced slabs, walls, and structural concrete.
- Why it stands out: Full carbide 4-cutter head plus a weld designed to hold up under hard rebar hits.
- Worth knowing: SDS-Plus shank only, so it is for SDS-Plus rotary hammers, not SDS-Max chucks.
Common Questions
- Will this bit fit an SDS-Max rotary hammer? No. This model uses an SDS-Plus shank.
- What are the key dimensions? It is 1/2 inch diameter, 8 inch overall length, and 6 inch working length.
- What materials is it designed for? Reinforced concrete, concrete, rebar, brick, and block.
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