4.9 Based on 1181 reviews 
Description
40mm High-Speed Core Drill for Masonry, Brick & Block
Armeg CL40S HSM 40mm Masonry Core Drill
Armeg CL40S HSM 40mm Masonry Core Drill delivers fast, clean results and is built for the rigours of professional masonry work. Ideal for creating accurate holes in brick, block, and general concrete, it offers the perfect balance of speed, control, and durability for trades who rely on dependable tools every day.
The Armeg CL40S HSM 40mm Core Drill is engineered for rotary and impact drilling into brick, block, and masonry. With a working length of 60mm and M16 x 2.0 thread fitting, this high-speed core bit is designed to reduce breakout while maintaining fast cutting speeds. Professionals use it to achieve neat holes with precision, especially when finishing in rotary-only mode.
Material Suitability
✔️ Very Suitable For:
- General concrete
- Hard bricks
- Soft bricks
- Lightweight blocks
- Natural stone
⚠️ Also suitable for constructional granite and heavy-duty concrete when used with the correct adaptor.
Key Features of the Armeg HSM Core Drill
- 40mm Diameter – For clean holes in masonry
- 60mm Working Length – Ideal for wall fixings and small penetrations
- 85mm Overall Length – Compact for easy handling
- Thread: M16 x 2.0 – Compatible with standard adaptors
- Use in rotary and rotary+impact modes
- Best results with hammer mode off during breakout
Specifications
- Product Code: CL40S
- Type: High Speed Masonry Core Drill
- Diameter: 40mm
- Working Length: 60mm
- Overall Length: 85mm
- Thread: M16 x 2.0
- Use With: Rotary and impact drills (M16 adaptors)
What’s Included?
- 1 x Armeg CL40S HSM 40mm Core Drill (adaptors sold separately)
Why Choose the Armeg CL40S HSM Core Drill?
- ✅ Designed for fast, clean drilling in masonry
- ✅ Trusted by electricians, plumbers, and general trades
- ✅ Neat breakout when used in rotary-only mode
- ✅ Long-lasting and impact-capable when required
How to Assemble Your Armeg CL40S HSM 40mm Masonry Core Drill
To set up your Armeg CL40S HSM 40mm Masonry Core Drill, start by inserting the CLPDS 7mm HSM Pilot Drill into the core barrel. Secure it in place using the 200mm HSM Tommy Bar.
Next, choose either the DL100B4S or DL300B4S SDS Plus arbor, depending on your required drilling depth. Screw the arbor into the rear of the core and tighten with the Tommy Bar.
Insert the assembled unit into your SDS Plus rotary drill, and you’re ready to core.
Why Buy From Electrical4Less?
Electrical4Less offers a full range of Armeg tools, including the CL40S HSM Core Drill. With rapid UK delivery, trade pricing, and expert advice, we’re your trusted source for fast and reliable masonry drilling products.
Summary
The Armeg CL40S HSM 40mm Core Drill combines speed, accuracy, and clean cutting to deliver excellent results in masonry. Whether used in rotary or impact mode, this compact and durable drill bit helps professionals achieve smooth, low-breakout holes in brick, concrete, and block. It’s the ideal solution for tradespeople who need consistent performance, reliable tool life, and clean finishes in every job.
