RUHI Center Drill A5X12.5X100 mm Long

The Center Drill Type A 5×12.5×100 mm is a long series, plain type double-ended center drill, made according to DIN 333A / ISO Standard, for deep centering and pilot hole drilling in machining and turning operations.

Manufactured from premium-grade High-Speed Steel (HSS) or Solid Carbide, this tool provides superior rigidity, wear resistance, and dimensional stability, even under high-speed or deep-reach cutting conditions.
The 60° included drill angle ensures precise centering, while the plain edge (without chamfer) design allows smooth chip removal and excellent surface finish.

With an overall length of 100 mm, this long series version is ideal for deep or recessed components, long shafts, dies, and tooling fixtures, where extended tool reach is required.
It performs exceptionally well on steel, stainless steel, and aluminum, ensuring accuracy and durability in CNC, lathe, and drilling machines.