Manufacturer: BIG DAISHOWA—Americas
Model: Micro

Features

• Improve the tool life of a deep hole drill or micro drill by creating a starter hole, also known as a pilot hole, with a pilot drill.
• Drilling a pilot hole 1-2xD in length creates a consistent surface for the next drill to enter, preventing damage to its primary cutting edges or corners.
• A pilot drill has an equal or larger point angle than the succeeding drill, guiding it toward the hole’s centerline and preventing “walking.”
• It is also important for a pilot drill to have a marginally larger diameter than the succeeding micro or deep hole drill to guide it without damaging cutting edges, margins, or corners.
• The tool features a positive diameter tolerance for improved accuracy.
• It has a 130° or 140° point angle for precise drilling.
• The flute length is 2xD for better chip removal.
• It features a four-facet point grind for enhanced cutting performance.