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Home > Products > Rods & preforms > Rods with helical coolant holes

Coolant hole rods programme that offers a multitude of configurations and ensures high precision

Diameter range

Our programme enables the production of blanks for gun drills with coolant holes in the diameter range from 3 mm to 35 mm.

Numerous versions available in stock

The optimal rods with 2, 3 or 4 coolant holes with helix angles from 15° to 46°, in standard lengths up to 530 mm can be selected for all common drill geometries. New to the range in our stock programme are ground rods with 15° helical coolant holes.

Minimum pitch tolerances

Thanks to the unique CERATIZIT classification system  even extra-long drilling tools may be ground whilst maintaining process stability.

- As sintered

- Ground to h6

- Diameter: 3 mm to 35 mm

- Standard length: 250 mm to 530 mm

- With 2, 3 or 4 helical coolant holes from 15° to 46°

 - Grade CTS20D


For the production of gun drill blanks with internal coolant supply:

- Universal drill blank with standard shank

- Gun drill blanks with helical coolant holes

- High-performance drills for aluminium and cast iron

- Step drills

- Diverse types of special tools

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