Drill bit set Proline 10874 — 2 pieces, length 150 mm

Proline 10874 drill bit set contains two 150 mm long drill bits engineered for tasks requiring extended reach. The bits are intended for use with compatible power drills and are suitable for operations in woodworking, metalworking and general construction where a longer drilling depth or access to recessed areas is necessary. The compact two-piece set offers a straightforward replacement option or a secondary pair for occasional use.

Advantages

The 150 mm length provides extended reach compared with standard bits, allowing access to deeper holes and hard-to-reach locations. The two-piece format keeps storage simple and reduces the need to carry multiple individual bits. Proline-branded manufacturing ensures consistent dimensional accuracy and compatibility with common drill chucks, enabling reliable centring and stable drilling performance.

Suitable for

• Drilling deep holes in wood for through-work or hidden fasteners
• Metalworking tasks requiring longer penetration with controlled feed
• General construction and renovation where recessed drilling is necessary
• Maintenance and repair jobs where a spare long bit is useful

Key specifications

• Number of pieces: 2
• Length: 150 mm
• Compatibility: standard power drills with matching chuck capacity
• Intended materials: wood, metal and general construction materials

How to use

Select a drill with a chuck capacity that accepts the shank diameter of the bit, secure the bit in the chuck and tighten according to the drill manufacturer’s instructions. Mark the drilling point, clamp the workpiece if possible, and start drilling at low speed to establish a clean entry before increasing feed. Use appropriate cutting speed and lubrication when drilling metal to prolong bit life. Withdraw the bit periodically to clear chips when drilling deep holes.

Usage recommendations

Inspect bits before use for visible wear or damage and replace if the cutting edges are chipped or blunt. Match drill speed and feed to the material: lower speeds for metals and higher speeds for wood. Wear eye protection and follow safe-drilling practices to avoid kickback and ensure accurate, clean holes.