Drill bit Proline HSS ground for metal 13.5 mm

Proline HSS ground drill bit for metal, diameter 13.5 mm, is a precision cutting tool designed for drilling holes in steel and other ferrous materials. Manufactured from high-speed steel (HSS) and finished with a ground tip, this drill bit delivers accurate hole placement, clean edges and consistent performance when used in hand drills and drill presses. Its geometry and material make it suitable for a range of metalworking tasks in workshops and light industrial settings.

Advantages

The HSS construction provides good wear resistance and heat tolerance during continuous drilling in metal. A precision ground point reduces walking on the workpiece and improves centring, while the fluted design evacuates chips efficiently to maintain cutting performance. The 13.5 mm diameter offers a mid-range size for common fastening and fabrication needs, combining dimensional stability with acceptable drill-through speed on steel and similar materials.

Suitable for

• Drilling through mild and medium carbon steel
• Creating holes for bolts, rivets and threaded inserts
• Workshop maintenance and metal fabrication tasks
• Use with hand-held drills and bench/column drill presses

Key specifications

• Material: high-speed steel (HSS)
• Tip: precision ground point for improved centring
• Diameter: 13.5 mm
• Suitable materials: steel and other ferrous metals
• Flute design: spiral flutes for chip evacuation
• Intended use: manual and press drilling

How to use

Secure the workpiece firmly in a vice or clamping fixture and mark the drilling point. Select an appropriate drill speed for the material—moderate speeds for steel to balance cutting and tool life—and apply cutting fluid to reduce heat and improve chip removal. Start drilling with light pressure to establish the centre, then apply steady pressure and allow the drill bit to cut without forcing. Withdraw periodically to clear chips and reapply coolant if necessary. After completion, deburr the hole to remove sharp edges.

Usage recommendations

Use recommended cutting fluids when drilling ferrous metals to prolong tool life and achieve cleaner holes. Match drill speed and feed to material hardness; lower speeds and steady feed rates are advised for harder steels. Store the drill bit in a dry, protected location to avoid corrosion and maintain the ground tip condition.