Core drill set Metabo 628319000 — 4-piece wet core bits Ø50 mm and Ø40 mm

The Core drill set Metabo 628319000 — 4-piece wet core bits Ø50 mm and Ø40 mm is a compact accessory set designed for creating precise circular openings in masonry and concrete. The set contains four diamond-tipped core bits in two diameters intended for use with compatible core drills and drilling rigs. It is suitable for tradespeople and installers who need reliable, repeatable hole cutting for electrical conduits, plumbing routes and HVAC penetrations.

Advantages

The core bits offer accurate cutting performance with efficient removal of material and a design that supports consistent hole geometry. Diamond segments provide durability and a long service life when used in wet drilling applications, reducing friction and heat. The set includes two sizes that cover common installation needs and enables quick bit changes to match on-site requirements.

Suitable for

• Drilling circular openings for electrical conduit and cable passages
• Creating penetrations for plumbing pipes and drains
• Making openings for HVAC ducts and ventilation components
• Work on concrete, reinforced concrete and masonry with wet core drilling

Key specifications

• Set composition: four core bits in two diameters
• Diameters: 50 mm and 40 mm
• Tip type: diamond-segment cutting edge suitable for wet drilling
• Intended use: masonry, concrete and reinforced concrete
• Compatibility: designed for use with Metabo core drills and similar core drilling systems
• Application method: wet drilling for reduced heat and improved cutting performance

How to use

Select the appropriate diameter core bit for the required hole and mount it securely to a compatible core drill or drilling rig following the drill manufacturer’s instructions. Use a steady feed rate and maintain a continuous water supply to the drilling interface to cool the diamond segments and flush out debris. Start drilling at low speed to establish the pilot, then increase speed as appropriate while monitoring cutting progress. After completing the hole, retract the bit slowly and clean both bit and work area to remove slurry before storage.

Recommendations

Use personal protective equipment including eye protection, hearing protection and gloves. Ensure secure workpiece fixation and follow safe drilling practices. Prefer wet drilling to extend bit life and improve cutting quality; adjust water flow to keep the cutting edge cooled without flooding electrical components.