Drill bit Proline 73103 — metal, Ø 3 mm, length 60 mm, 1 pc

Single Proline 73103 drill bit for metal work, diameter 3 mm and overall length 60 mm. Designed for drilling steel and other metal alloys in manual and machine drills, this Proline 73103 bit is supplied as one piece and is intended for precision holes in fabrication, repair, electronics and metalworking tasks where a small-diameter, short-length bit is required.

Advantages

The Proline 73103 drill bit features a compact 60 mm overall length and a 3 mm cutting diameter that enable controlled, accurate drilling in confined spaces. Its geometry is suited for metalworking applications, providing consistent hole quality. Supplied individually, the single-piece configuration is convenient for replacing worn tools or stocking specific sizes for specialized jobs.

Suitable for

• Drilling small-diameter precision holes in steel and metal alloys
• Repair and maintenance tasks requiring accurate pilot holes
• Electronics and instrument assembly where space is limited
• Manual drilling and machine drilling in metalworking shops

Key specifications

• Material application: metal and metal alloys
• Cutting diameter: 3 mm
• Overall length: 60 mm
• Quantity: 1 piece
• Type: straight shank drill bit for use in hand and machine drills

How to use

Secure the Proline 73103 drill bit in the drill chuck ensuring proper centring and firm tightening. Mark and, if necessary, clamp the workpiece to prevent movement. For steel and harder metals use appropriate cutting speed and coolant or cutting oil to extend tool life and improve hole finish. Apply steady feed pressure and keep the drill perpendicular to the work surface; retract occasionally to clear chips when drilling deeper holes.

Usage recommendations

For best results when drilling metal, start with a low to moderate spindle speed, use cutting fluid for lubrication and cooling, and maintain firm clamping of the workpiece. Store the bit in its plastic case to protect the cutting edge when not in use.