Diamond Core Drill Bit Distar CS- x 082 x 70-4 x M16 for core drilling, M16 connection, 82 mm cutting diameter, 70 mm cutting depth

Diamond core drill bit Distar CS- x 082 x 70-4 x M16 is a cylindrical core bit designed for drilling precise circular holes in concrete, masonry and reinforced concrete. The bit has an 82 mm cutting diameter and a 70 mm cutting depth, with an M16 threaded connection for attachment to compatible core drills or rotary tools. It can be used in wet or dry coring workflows depending on the equipment and cooling method, and is intended for professional installation tasks in plumbing, electrical and HVAC systems as well as construction openings.

Advantages

The diamond cutting segments provide high wear resistance and consistent cutting performance when working with abrasive building materials. The standard M16 connection allows quick and secure mounting to a wide range of hand-held and stand-mounted core drilling machines. The 70 mm cutting depth combined with an 82 mm diameter enables drilling through typical wall and slab thicknesses encountered in installation and retrofit work. The core bit is suitable for both wet and dry use when paired with appropriate equipment and cooling, offering versatility on job sites.

Suitable for

• Drilling circular holes for plumbing pipe penetrations in concrete and masonry
• Creating openings for electrical conduits and junction boxes
• Forming holes for HVAC duct or mounting anchors in structural elements
• Controlled core removal for inspection or utility access in renovation projects

Key specifications

• Cutting diameter: 82 mm
• Cutting depth: 70 mm
• Connection type: M16 threaded connection
• Cutting material: diamond segments for abrasive materials
• Intended materials: concrete, reinforced concrete, masonry
• Use modes: suitable for wet and dry coring depending on equipment

How to use

Select a compatible core drilling machine or rotary tool with an M16 arbor or adapter. Secure the workpiece or ensure machine stability, mark the drilling center and, if possible, start with a pilot guide or centering bit. For wet coring, connect a water feed to supply cooling to the diamond segments; for dry coring, follow the drill manufacturer's guidance on intermittent cutting and dust extraction. Apply steady axial pressure and maintain machine speed appropriate for concrete or masonry. Withdraw the core bit periodically to remove debris and prevent overheating when dry coring.

Usage recommendations

Use appropriate personal protective equipment including eye protection, respiratory protection when dry cutting, hearing protection and gloves. When performing wet coring, manage water runoff and use a suitable vacuum or water collection system to control slurry. Match drill speed and feed rate to the material hardness and follow the core drill manufacturer’s instructions for adapters, coolant flow, and safe operation.