Drill bit set Proline 10863 — 2 pcs, length 30 mm, for M5 threads

Proline 10863 is a set of two drill bits each 30 mm long, designed to prepare holes for M5 threaded fasteners. The compact two-piece set provides the correct drilling diameter and working depth for M5 threads, making it suitable for repair, assembly and fastening operations where precise pilot holes are required. These drill bits are intended for use with metal and other compatible materials depending on the drill bit material and drill type.

Advantages

The set contains two identical 30 mm drill bits that ensure consistent hole depth for M5 threads and reduce the need to measure or change bits frequently. Their short length offers better control and stability when drilling pilot holes for small fasteners. The compact two-piece format is convenient for storage and quick access during maintenance or assembly tasks.

Suitable for

• Preparing pilot holes for M5 bolts and screws
• Repair and maintenance work on metal components
• Assembly of furniture, small machinery and fittings requiring M5 threads
• General fastening tasks where controlled hole depth is needed

Key specifications

• Quantity: 2 pieces
• Overall length: 30 mm
• Intended thread size: M5 (for creating holes suited to M5 fasteners)
• Application: drilling pilot holes in metal and compatible materials depending on bit material
• Designed for use with standard power drills and drill presses suitable for small-diameter bits

How to use

Mark the drilling position and secure the workpiece to prevent movement. Select an appropriate drill speed for the material being drilled and fit one of the 30 mm bits into the drill chuck, ensuring it is held securely and runs true. Apply steady, even pressure and drill to the required depth, using a depth stop or a visual indicator on the bit to avoid over‑drilling. Retract the bit periodically on harder materials to clear chips and prevent overheating. After drilling, deburr the hole to achieve a clean edge before fitting the M5 fastener.

Usage recommendations

Use cutting fluid or lubricant when drilling metals to extend tool life and improve hole quality. For harder alloys, reduce feed pressure and use intermittent drilling to avoid overheating. Store the bits in a protective case to preserve tip geometry and prevent damage.