Drill Bit EPM E-326-2120 for Aerated Concrete (Ytong) — 120 mm

EPM Drill Bit model E-326-2120 is a specialized core bit with a 120 mm diameter, developed for drilling clean, large-diameter holes in aerated concrete (Ytong) and other lightweight porous masonry materials. The bit is intended for use with compatible rotary drilling machines and core drill attachments, enabling the installation of ventilation ducts, plumbing sleeves, electrical conduits and anchor points in blockwork and partition walls. Its geometry and cutting edges are optimized for fast penetration and minimal cracking in aerated concrete.

Advantages

The 120 mm EPM core drill provides accurate, circular holes with reduced chipping compared with standard masonry bits. Its design promotes efficient dust removal and steady cutting action in soft, cellular materials, which helps maintain hole dimensions and reduces the need for additional finishing. The bit is suitable for repeated use on aerated concrete, offering consistent performance when paired with appropriate drilling equipment.

Suitable for

• Creating ventilation and HVAC openings in aerated concrete walls
• Installing plumbing sleeves and pipe penetrations
• Forming passageways for electrical conduits and cables
• Making anchor or fixing points in blockwork and partition walls

Key specifications

• Intended material: aerated concrete and other lightweight porous masonry
• Diameter: 120 mm
• Type: core/coring drill bit for rotary drilling machines
• Application: large-diameter through-holes and blind holes in blocks and partitions
• Compatibility: designed for use with compatible rotary drills or core drill attachments

How to use

Secure the drill bit in a compatible drill or core attachment according to the tool manufacturer's instructions. Mark the drilling location and, if possible, clamp or steady the workpiece to minimise movement. Start drilling at low speed to establish the centre, then increase speed and apply steady, even pressure suitable for aerated concrete; avoid excessive thrust that can cause chunking. Periodically withdraw the bit to clear dust and allow cooling. After completing the hole, inspect edges and remove any loose material with a rasp or brush if needed.

Usage recommendations

Use personal protective equipment including eye protection and a dust mask when drilling aerated concrete. For best results, pair the bit with a drill that offers steady speed control and, where available, use dust extraction or wet drilling accessories to reduce airborne particles. Avoid using the bit on dense reinforced concrete or masonry with significant aggregate, as performance is optimized for lightweight porous materials.