• Innovative cutting edge geometry for high performance counter boring.
• Excellent chip breaking and high precision flat surfaces.
Low cutting force means suitability for all machines that can use HSS drills.
The VAPDSCB drill delivers the same high performance as a conventional counter boring end mill but gives longer tool life.
• VAPDSCB breaks up chips and prevents them wrapping around the tool.
Note) When counter boring using the VAPDSCB after drilling a bolt hole (pilot hole), unbroken chips may form and wrap around the tool.
Since non-peck drilling is possible up to the effective flute length*, there is no need to drill a pilot hole, therefore shortening the machining time.
The small dimple allows a thicker base material on blind holes.
The 180° point angle the machining reduces the machining allowance on the end face.
This reduces vibration during the finish boring operation and extends tool life.