FANAR drill bit Nawiertak NWRC 3,15 HSS – diameter 3.15 mm

FANAR Nawiertak NWRC 3,15 HSS is a high-speed steel twist drill with a nominal diameter of 3.15 mm designed for precision drilling in metalworking and general machining. The compact diameter and rigid HSS construction provide accurate hole positioning and consistent cutting performance for pilot holes, small components and light maintenance tasks that require a durable small-diameter tool.

Advantages

The HSS material offers good wear resistance and toughness for a range of ferrous and non-ferrous metals. The 3.15 mm diameter ensures tight tolerance drilling for accurate fits and repeatable hole quality. The twist-flute geometry provides efficient chip evacuation and stable cutting action at typical machining speeds used for small drills. The solid construction reduces runout and improves tool life in intermittent and continuous drilling operations.

Suitable for

• Drilling pilot holes in sheet metal and fabricated parts
• Precision component fabrication and assembly work
• Light repair and maintenance tasks requiring small-diameter holes
• Model making, electronics chassis and instrument panels

Key specifications

• Material: high-speed steel (HSS)
• Nominal diameter: 3.15 mm
• Tool type: twist drill (straight shank)
• Typical applications: metalworking, general machining, maintenance

How to use

Secure the workpiece to prevent movement and select an appropriate chuck that supports the drill shank. Use suitable cutting speeds and feed rates for HSS when drilling metals: moderate spindle speeds and steady feed to avoid overheating the small-diameter tool. Apply cutting fluid for improved life and chip evacuation when working with tougher materials. Retract periodically for chip clearance when drilling deeper holes and inspect the drill and hole quality regularly.

Usage recommendations

For best results, start with lower spindle speeds and increase only if chip formation and temperature remain controlled. Use light coolant or cutting oil for ferrous materials and maintain proper tool clamping to minimize runout. Replace the drill if wear or chipping affects hole accuracy.