Drill bit Abraboro VULCANO HSS-G DIN 338 stepped point Ø4.5 mm

Solid HSS-G twist drill bit Abraboro VULCANO with stepped point, DIN 338, diameter 4.5 mm. Manufactured from high-speed steel for wear resistance and dimensional stability, this drill bit is designed for drilling steel and a broad range of other metals. The stepped point geometry improves centering and reduces walking on the workpiece, while the flute profile supports efficient chip evacuation. Suitable for use in handheld drills and machine tools in workshop and industrial environments, the tool provides precise hole geometry and consistent performance under typical metalworking conditions.

Advantages

The HSS-G material ensures a balance of hardness and toughness for extended tool life during conventional drilling operations in steel and non-ferrous metals. The stepped point reduces the need for pilot holes by improving initial positioning and cutting engagement, which enhances accuracy. Ground flutes and a DIN 338 profile deliver predictable chip removal and reduced clogging. The 4.5 mm diameter offers a common size for through-holes, clearance holes and preparatory drilling for taps.

Suitable for

• Drilling through mild and hardened steels
• Creating holes in non-ferrous metals (aluminium, brass, copper)
• General workshop tasks with handheld drills and drill presses
• Preparation of holes for tapping and assembly processes

Key specifications

• Material: High-speed steel (HSS-G)
• Point type: Stepped point for improved centring
• Standard: DIN 338 twist drill geometry
• Diameter: 4.5 mm
• Usage: Suitable for handheld and machine drilling
• Flute: Ground flutes for efficient chip evacuation

How to use

Secure the workpiece and select appropriate clamping to prevent movement. Use recommended cutting speeds and feed rates for high-speed steel when drilling metals to optimise tool life and hole quality. Apply cutting fluid or lubricant when drilling steel to reduce heat and improve chip flow. Start drilling with light pressure to allow the stepped point to centre, then increase to a consistent feed once the cutting edges engage. Remove chips periodically from deeper holes to avoid clogging and overheating.

Usage recommendations

For best results when drilling steel, use moderate spindle speeds and steady feed; apply a suitable cutting lubricant and avoid excessive dwell at the hole bottom. Inspect the drill bit for wear and replace when edges become rounded or chip evacuation degrades.