Hole Saw DEDRA H1231 8.2 cm for Stone and Concrete

The DEDRA H1231 8.2 cm hole saw for stone and concrete is a purpose-built cutting accessory for masonry drilling tasks. Designed to create clean circular openings with an 82 mm diameter, it fits common power drills and is intended for use on materials such as natural stone, concrete, cement blocks and other mineral substrates. The tool's construction focuses on abrasion resistance and dimensional stability to provide consistent results during installation and renovation work.

Advantages

The hole saw features a hardened cutting edge and a robust body that resist wear when cutting abrasive masonry materials. Its size offers a balance between access and structural integrity, allowing accurate hole formation without excessive chipping when used correctly. The design facilitates stable alignment on the drill and steady penetration, contributing to efficient material removal and reduced operator effort.

Suitable for

• Creating openings for electrical boxes and conduit in concrete and stone walls
• Drilling holes for plumbing or HVAC penetrations in masonry
• Making passage holes for anchors, dowels and cable routing in renovation projects
• On-site construction tasks requiring consistent circular cuts in mineral substrates

Key specifications

• Cutting diameter: 8.2 cm (82 mm)
• Material compatibility: natural stone, concrete, cement-based blocks and similar mineral materials
• Typical mounting: compatible with standard drill arbors designed for hole saws
• Construction: hardened cutting edge and reinforced body for improved wear resistance

How to use

Select an appropriate drill with a suitable arbor and secure the hole saw according to the drill manufacturer's instructions. Mark the center point of the required opening and, if necessary, use a pilot drill to guide the hole saw. Start drilling at low speed to establish the cut, then apply steady pressure and moderate speed while allowing the tool to remove material without forcing. Periodically withdraw the hole saw to clear debris and reduce heat build-up. Use cooling or intermittent cutting when working on dense concrete to extend tool life.

Usage recommendations

Use appropriate personal protective equipment including safety glasses, dust mask and hearing protection. For best results on reinforced concrete, locate and avoid rebar where possible or use tools designed for mixed-material cutting. Match drill speed and feed rate to the hardness of the material and replace the hole saw if excessive wear or vibration is observed.