Drill concrete, masonry and stone by combining rotation and hammer action.

SDS-Plus shank bit X4L Unifix
Key features
- Length165, 115, 215, 265, 315, 465, 365, 600, 250, 450
- Diameter4, 5, 5,5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 22, 24, 25, 28, 30
- Usable length100, 50, 115, 150, 200, 250, 215, 400, 300, 550
What it is
The Unifix X4L SDS-plus shank drill bit (code 3654-40-165-01) is the professional solution for precise drilling in concrete and reinforced concrete, designed for rotary-percussion tools with an SDS-plus chuck. Ideal for building contractors, installers and industrial maintenance engineers who require consistent performance and clean holes even in demanding conditions.
A masonry bit is a carbide-tipped bit for drilling concrete, brick and stone with a hammer drill or rotary hammer.
What it is for
Used for drilling reinforced concrete, in hammer or rotary hammer mode and for drilling solid and hollow masonry, clay brick and blocks.
How to use it
Choose the machine's shank type (straight, SDS-Plus or SDS-Max) and the diameter required by the wall plug. Start the hole at low speed, then engage hammer action, holding the bit square to the surface and without forcing, withdrawing it frequently to clear the dust. Clean the dust out of the hole before inserting the plug.
Where it is used
- Residential construction
- Building services
- Renovation
Technical data
- Length: 165, 115, 215, 265, 315, 465, 365, 600, 250, 450
- Diameter: 4, 5, 5,5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 22, 24, 25, 28, 30
- Usable length: 100, 50, 115, 150, 200, 250, 215, 400, 300, 550
Who it is for
Designed for electricians, plumbers, bricklayers and heating and plumbing engineers.
Related products
- SDS-Plus S3L drill bit Unifix
- SDS-Plus shank bit S5L Unifix
- Compact cordless combi drill 2-speed XR 18V DeWalt — from the category Hammer Drills, Drill Drivers and Rotary Hammers
- Steel anchor FP with closed eyebolt M6 Ø10 - M8 Ø12 - M10 Ø14 - M12 Ø17, hole 12, 14, 16, 20 Unifix — from the category Heavy-Duty Anchors
- Pneumatic rock drill PK100 Breaker — from the category Rotary Hammers
- Browse the whole category: Drill Bits for Granite, Masonry and Concrete
Before you order
In your request, please state the length, the diameter and the quantities required, so we can give you the right quotation first time.
For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.
Specifications 3
| Length | 165, 115, 215, 265, 315, 465, 365, 600, 250, 450 |
|---|---|
| Diameter | 4, 5, 5,5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 22, 24, 25, 28, 30 |
| Usable length | 100, 50, 115, 150, 200, 250, 215, 400, 300, 550 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Drill masonry and concrete and drive and tighten bolts, corded or cordless.
Anchor heavy loads to concrete and solid masonry, where plastic plugs are not enough.
For safety
Protect eyes and face from fragments, dust, splashes and impacts.




