Hole saw Dedra 08W146, diameter 146 mm, for metal, stainless steel, aluminium, plastic, wood

Dedra 08W146 is a single-piece hole saw with a 146 mm cutting diameter designed to create clean round openings in a variety of materials including metal, stainless steel, aluminium, plastic and wood. The tool is intended for professional and DIY use where a large-diameter hole is required; it is compatible with standard mandrels and drills that accept hole saws. The solid construction ensures stable cutting and straightforward mounting on an appropriate arbor.

Advantages

The one-piece design provides increased rigidity and reduces the risk of blade separation during cutting. The tooth geometry and material specification are selected to handle both ferrous and non-ferrous metals as well as softer materials such as plastic and wood. The 146 mm diameter enables large through-holes for conduits, ventilation ducts, pipes and cable routing, while compatibility with common drill chucks and arbors simplifies tool setup.

Suitable for

• Cutting holes for electrical conduits and junction boxes
• Creating openings for plumbing pipes and fittings
• Making ventilation and HVAC access holes
• Cabinetry and joinery requiring large circular holes
• General building and renovation tasks involving mixed materials

Key specifications

• Cutting diameter: 146 mm
• Design: single-piece hole saw
• Material compatibility: metal, stainless steel, aluminium, plastic, wood
• Mounting: suitable for standard hole saw arbors and compatible drill chucks
• Typical applications: through-holes for pipes, conduits, ducts and cable passages

How to use

Secure an appropriate arbor or mandrel to your drill and mount the hole saw firmly according to the arbor manufacturer's instructions. Mark the centre of the hole, clamp the workpiece if possible, and position the pilot or guide to maintain alignment. Use a steady, controlled feed rate and moderate drill speed suitable for the material being cut; apply cutting lubricant when working with metals to reduce heat and improve cutting life. After completing the cut, remove metal shavings or debris and inspect the edge for burrs before finishing.

Usage recommendations

Use appropriate personal protective equipment, including safety glasses and gloves. For metal and stainless steel, use cutting fluid and intermittent drilling to avoid overheating. When cutting wood or plastic, ensure the workpiece is well supported to prevent splintering. Match drill speed and feed pressure to the material to extend tool life and achieve a cleaner cut.