Irwin IRW10504165 Bi-Metal High Speed Holesaw 20mm | 10504165

Irwin IRW10504165 Bi-Metal High Speed Holesaw, 20mm Diameter (10504165)

Irwin IRW10504165 is a bi-metal high speed holesaw designed for cutting clean, accurate holes in a wide range of materials—ideal for site, workshop and installation tasks where durability matters. The 20mm diameter makes it a practical choice for common fixings, cable and pipework-related openings.

Built as a holesaw accessory for use with a compatible arbor, the 10504165 combines tough bi-metal construction with a variable tooth pitch for efficient cutting across mixed materials.

Key Features

• Bi-metal construction: Combines HSS cutting teeth with a durable steel body for long service life in demanding use.
• Electron beam welded teeth: Strong tooth-to-body joint helps the holesaw stand up to tougher cutting tasks.
• Variable tooth pitch (4–6 TPI): Designed to improve cutting speed and performance across different materials.
• Multi-material capability: Suitable for cutting aluminium, copper, iron, stainless steel, wood and zinc.
• Professional applications: A practical choice for general construction, electrical installation, plumbing, heating, ventilation and remodelling work.

Specifications at a glance

Suitable applications

• Cutting 20mm holes for general construction and refurbishment tasks.
• Electrical installation work where clean, repeatable holes are required.
• Plumbing, heating and ventilation applications across mixed materials (including metal and wood).