Hole saw Dedra 08W168 - 168 mm diameter, for metal, stainless steel, aluminium, plastic, wood

Dedra 08W168 is a single-piece hole saw with a 168 mm cutting diameter designed for creating large circular openings in a range of materials including metal, stainless steel, aluminium, plastic and wood. The tool combines a reinforced body with a toothed cutting edge to deliver consistent circular cuts for ventilation outlets, cable and pipe passages, fixture mounting and similar installations. It is compatible with standard drill arbors and drill stands, making it suitable for both on-site trade use and home DIY projects where accurate large-diameter holes are needed.

Advantages

The one-piece construction improves rigidity during cutting and reduces the risk of misalignment when attaching to an arbor. The toothed cutting edge is engineered to cut through thin to medium-thickness metals as well as softer materials like aluminium, plastics and wood, providing versatile performance across multiple applications. Compatibility with common arbors and drill stands simplifies setup and replacement, while the 168 mm diameter meets the typical size requirements for ventilation collars, large conduit entries and mounting fixtures.

Suitable for

• Cutting ventilation and extractor fan openings in walls and panels
• Creating passages for pipes, ducts and large cables
• Making circular cutouts for fixture and appliance installation
• On-site metalwork and sheet metal operations with portable drills or drill stands
• DIY tasks requiring accurate large-diameter holes in mixed materials

Key specifications

• Cutting diameter: 168 mm
• Design: single-piece hole saw
• Suitable materials: carbon steel, stainless steel, aluminium, plastic, wood
• Compatibility: standard drill arbors and drill stands
• Typical use: manual drilling or with drill stand for improved stability

How to use

Secure an appropriate arbor compatible with the hole saw and fasten the hole saw to the arbor according to the arbor manufacturer's instructions. Mark the centre point of the required hole and, if needed, start with a pilot drill to establish location and stability. Position the saw perpendicular to the work surface and apply steady, even pressure while operating the drill at a speed suitable for the material being cut—lower speeds for metals and higher speeds for plastics and wood. Use cutting fluid when working with metals to reduce heat and extend tool life. After cutting, retract the saw and clear the cut material carefully.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses, gloves and hearing protection. When cutting metal or stainless steel, employ cutting fluid and moderate feed rates to avoid overheating. For improved accuracy and safety on thin sheet materials, consider backing the workpiece or using a drill stand to maintain perpendicular alignment.