Drill bits Proline HSS-TiN 2.5 mm, set of 3

Set of three Proline HSS‑TiN drill bits with 2.5 mm diameter, designed for general workshop and maintenance tasks. Made from high‑speed steel with a titanium nitride (TiN) coating, these 135° split point bits offer adjustable cutting geometry and a working length of 30 mm with a total length of 57 mm, providing improved wear resistance and consistent hole finish when drilling metal, wood and many plastics.

Advantages

HSS base material combined with TiN coating increases hardness and wear resistance, extending tool life. The 135° split point with adjustable rake reduces walking and improves centring on the workpiece. Precisely ground flutes deliver cleaner chips and a better surface finish in the drilled hole. Compact three‑piece set is suitable for on‑site repair and everyday workshop use.

Suitable for

• Drilling metal (thin sheets, profiles)
• Drilling wood and laminated materials
• Drilling many plastics
• Handheld and bench drilling machines

Key specifications

• Brand: Proline
• Model/MPN: 5154316
• EAN: 5903755154316
• Diameter: 2.5 mm
• Working length: 30 mm
• Total length: 57 mm
• Tip angle: 135° split point with adjustable rake
• Material: HSS (high‑speed steel) with TiN (titanium nitride) coating
• Quantity: set of 3 pieces

How to use

Clamp the selected Proline HSS‑TiN 2.5 mm drill bit securely in the drill chuck. Mark and, if necessary, centre‑punch the drilling point to minimize walking. Use appropriate drill speed for the material: medium speeds for metals, higher speeds for wood and plastics. Apply steady feed pressure and allow the bit to clear chips periodically. For metal drilling use cutting fluid to reduce heat and extend bit life.

Usage recommendations

To maximize service life, store bits dry, avoid overheating during drilling, and replace when the cutting edge becomes dull or produces excessive burrs. Use lubrication for metal and moderate speeds for plastics to prevent melting.