Diamond core bit 82 mm with SDS+ adapter and M16 thread for concrete — Tvardy

Tvardy segmented diamond core bit, 82 mm diameter, is designed for efficient and accurate drilling in concrete and other hard masonry materials. The core bit features laser-welded diamond grit and four hardened 10 mm segments that provide fast, clean cutting and increased wear resistance. The body is made of alloy steel to reduce deformation under heavy load, and it is supplied with an SDS+ adapter and an M16 thread to ensure compatibility with a wide range of drills and rotary hammers.

Advantages

The segmented diamond rim and laser-welded diamonds deliver high cutting speed and consistent performance when drilling reinforced concrete, brick or stone. Four hardened 10 mm segments increase segment life and help maintain a straight cutting line, while the alloy steel construction improves durability and resistance to bending. The inclusion of an SDS+ adapter and M16 thread provides flexible mounting options for common handheld drills and rotary hammers, reducing the need for additional adapters.

Suitable for

• Drilling through reinforced concrete and structural concrete
• Creating openings for plumbing and electrical installations
• Core sampling and removal of material plugs
• Cutting holes in brick, block, and natural stone

Key specifications

• Diameter: 82 mm
• Segment type: segmented rim
• Segment height: 10 mm (hardened segments)
• Diamond bonding: laser-welded diamond grit
• Shank/adaptor compatibility: SDS+ adapter and M16 thread
• Body material: alloy steel
• Intended material: concrete, reinforced concrete, brick, block, natural stone

How to use

Select the correct mounting option (SDS+ or M16) for your drill or rotary hammer and secure the adapter firmly. Mark the drilling location and start at low speed to centre the core bit, then increase speed and apply consistent pressure without forcing the bit. For longer life and cleaner cuts, use water cooling or intermittent drilling to remove debris and control temperature. After completing the hole, retract the core and clear any remaining plug and slurry before resuming work.

Usage recommendations

Use appropriate personal protective equipment, including eye protection, hearing protection and dust control measures. For best durability, avoid excessive lateral force and allow the diamond segments to wear gradually. Use wet drilling where feasible to extend segment life and reduce dust; if dry drilling, use frequent pauses and a dust extraction system.