Irwin IRW10502386 HSS Pro 4.5mm Drill Bit – High-Speed Steel, Precision Ground (OL: 80mm, WL: 47mm) | 10502386

Irwin IRW10502386 HSS Pro 4.5mm Metal Drill Bit (DIN 338, 80mm OL / 47mm WL)

Irwin IRW10502386 is a 4.5mm HSS Pro drill bit designed for accurate, efficient drilling in metal, with a jobber-length profile that suits everyday workshop and site tasks. It’s a practical choice for tradespeople and serious DIY users who need clean, controlled hole-making with dependable bit geometry.

With an 80mm overall length and 47mm working length, model 10502386 is well suited to precision drilling where access is limited or hole depth is modest, helping you maintain accuracy without the feel of an over-long bit.

Key Features

• HSS construction: Built for metal drilling with good heat resistance and durability in regular use.
• DIN 338 jobber length: A widely used drill bit format for general-purpose metalworking applications.
• 118° point angle: Designed for reliable starting and consistent drilling performance across common materials.
• 4.5mm diameter: Ideal for clearance holes, pilot work and precision drilling where accuracy matters.
• Balanced working length: 47mm flute/working length supports controlled drilling and chip clearance on typical material thicknesses.

Specifications at a glance

Suitable applications

• Drilling accurate holes in metal (e.g. mild steel and similar common materials).
• Pilot holes and precision work where a 4.5mm bit size is required.
• Use in handheld drills and drill presses with a standard chuck.