Designed for machinists and workshop professionals, the Dormer Pramet A242 centre drill delivers precise centering with a durable HSS-E edge. Its long-series design and twin-ended geometry maximize reach and efficiency for shaft-centering tasks.

• Size (Diameter x Length): 5.00 mm diameter x 12.00 mm length, long-series centre drill for extended reach.
• Material: Premium HSS-E (high-speed steel enhanced) for versatile drilling across metals, including steel, aluminium, and stainless steel.
• Cutting geometry: 118° pilot with a 60° conical center to create accurate, clean center holes and ease entry into the workpiece.
• Finish: Bright finish reduces workpiece material sticking to the cutting edge and aids chip ejection.
• Design: Double-ended construction provides two drilling ends for increased productivity and economical use of tooling.

This centre drill helps you establish precise centers quickly, enabling secure holding in chucks and fixtures. The extended reach of the long-series design makes it ideal for deeper or harder-to-reach center holes, while the dual ends minimize tool changes in busy shops. Compatible with a range of materials—from steel and aluminum to stainless steel—the A242 combines reliable performance with practical versatility for everyday machining tasks.