RUHI Center Drill BS4 X 100 mm Long

The Center Drill BS-4 × 100 mm is a long-length, double-ended center drill and countersink tool, manufactured as per British Standard BS 328 Type 4.
It is designed to create a center hole and countersink in a single operation, ensuring perfect alignment and reducing machining time.

Made from premium-grade High-Speed Steel (HSS) or Solid Carbide, this long series BS-4 drill provides high rigidity, precision, and excellent wear resistance, even during deep centering or heavy-duty machining.
It features a 60° included angle and a protective chamfer, giving a smooth surface finish and preventing tip chipping.

The 100 mm overall length offers extended reach, making it suitable for recessed or deep components, large shafts, and setups requiring long tool engagement in CNC, lathe, or drilling machines.