Drill bit Abraboro VULCANO HSS-G DIN 338 stepped tip Ø8 mm

Abraboro VULCANO HSS-G DIN 338 stepped tip Ø8 mm is a high-speed steel drill bit designed for metalworking and general workshop tasks. Made to DIN 338 specifications, this 8 mm solid HSS-G tool features a stepped (graduated) tip that promotes progressive cutting and improved chip evacuation. The geometry of the stepped point helps center the drill, reduce walking at startup and facilitate accurate through-holes and sequential enlargements during machining operations.

Advantages

The stepped tip design provides controlled penetration and better chip flow compared with standard point drills, allowing smoother drilling in a range of ferrous and non-ferrous metals. Manufactured from HSS-G (high-speed steel) to DIN 338 tolerances, the tool offers consistent hardness and wear resistance suitable for routine workshop use. The 8 mm diameter gives a common, versatile hole size for fastening and assembly tasks, and the flute geometry supports efficient swarf removal to maintain cutting performance over repeated operations.

Suitable for

• Drilling through-holes in steel and cast iron
• Working with non-ferrous metals such as aluminium and brass
• Progressive hole enlargement and stepped drilling operations
• General machine shop and maintenance tasks

Key specifications

• Material: High-speed steel (HSS-G)
• Standard: DIN 338
• Tip: Stepped (graduated) point
• Diameter: 8 mm
• Application: Metal drilling, general workshop use
• Flute: Spiral flute for swarf evacuation

How to use

Secure the workpiece in a vice or fixture to prevent movement, and select an appropriate clamp or centre punch to mark the drilling location if needed. Use suitable cutting speed and feed for the workpiece material; apply cutting fluid when drilling harder steels to reduce heat and extend tool life. Start drilling at low speed until the tip engages and then use steady pressure and appropriate speed for the material. Withdraw the drill periodically on deep holes to clear swarf and allow cooling.

Usage recommendations

For best results, match drill speeds and feeds to the material being drilled and use cutting fluid for ferrous metals. Inspect the tip and flutes regularly for wear and regrind or replace the bit when performance degrades; avoid excessive side loading to maintain the stepped tip geometry and achieve accurate holes.