Drill bit set Proline 10846 — 2 pcs, length 75 mm, supports thread size M12

Proline 10846 is a set of two drill bits, each 75 mm long, designed for use in applications that require preparation for M12 threads or clearance holes. The bits are intended for general-purpose drilling in workshop and construction environments and are compatible with standard drill chucks. The compact two-piece pack provides a straightforward solution when working with fasteners and threaded connections sized for M12.

Advantages

The set offers consistent length and geometry across both pieces, which helps maintain repeatability when preparing holes for M12 threaded components. Their 75 mm length gives adequate reach for many assembly and repair tasks while remaining easy to handle in common drills. Compatibility with standard chucks makes these bits suitable for most hand-held and bench drilling tools without requiring adapters.

Suitable for

• Drilling clearance and pilot holes for M12 fasteners
• General-purpose metal and construction drilling where M12 thread preparation is needed
• Workshop repair, assembly, and maintenance tasks

Key specifications

• Quantity: 2 pieces
• Length: 75 mm
• Designed for use with M12 threaded applications (thread preparation/clearance)
• Compatibility: standard drill chucks
• Intended use: general-purpose drilling in workshop and construction settings

How to use

Select an appropriate drill with a compatible chuck and securely fasten the bit. Mark and, if necessary, center-punch the drilling point before starting. Use steady pressure and appropriate speed for the workpiece material, withdrawing periodically to clear chips. For metal applications, apply cutting fluid as required to reduce heat and prolong bit life. After finishing the hole, deburr edges to prepare for thread installation or to achieve the desired clearance.

Usage recommendations

To ensure consistent results when preparing holes for M12 fasteners, verify drill speed and feed rate according to the material being drilled, keep the bit cool in metalworking operations, and store the bits dry to avoid corrosion. Replace bits that show significant wear or damage to maintain hole quality and safety.