RUHI Center Drill A4X10X100 mm Long

The Center Drill Type A 4×10×100 mm is a long series, plain type double-ended center drill, manufactured as per DIN 333A / ISO Standard for deep centering, pilot hole drilling, and precision alignment in CNC and lathe operations.

Made from high-quality High-Speed Steel (HSS) or Solid Carbide, this tool offers exceptional hardness, rigidity, and dimensional accuracy, making it ideal for high-performance machining.
The 60° included drill angle ensures accurate centering and smooth cutting performance, while the plain cutting edge (without chamfer) design provides excellent surface finish and stability during deep operations.

With an overall length of 100 mm, this long series drill provides extended reach and superior control for deep or recessed components, long shafts, and tooling fixtures.
It performs efficiently on steel, stainless steel, cast iron, and aluminium, and is suitable for both CNC and conventional machines.