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Blue-Dur

This optimized and special Karnasch Blue-Dur coating simplifies the processing and handling of materials that are difficult to machine. Specially developed for dry work, it also increases process reliability under the most difficult working conditions. With Karnasch Blue-Dur coated tools, you achieve unique tool lives and performance in all steel grades.

Best machining results in all steel grades for wet and dry machining.

Coating technology:

  • PVD Multilayer

Micro hardness:

  • 3400 HV0.05

Coating material:

  • AlTiN

Coating thickness:

  • Diameter-related

Max. operating temperature:

  • 900°C

< 1 > 8 Results

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201449
The karnasch professional step drill made of hss-xe steel and blue dur coating and spiral fluted with split point karnasch step drills are designed to drill perfectly round holes in sheet metals of an thickness up to 4 mm.
£83.30 Excl VAT
201450
The karnasch professional step drill made of hss-xe steel and blue dur coating and spiral fluted with split point karnasch step drills are designed to drill perfectly round holes in sheet metals of an thickness up to 4 mm.
£108.32 Excl VAT
201448
The karnasch professional step drill made of hss-xe steel and blue dur coating and spiral fluted with split point karnasch step drills are designed to drill perfectly round holes in sheet metals of an thickness up to 4 mm.
£46.66 Excl VAT
201451
The karnasch professional step drill made of hss-xe steel and blue dur coating and spiral fluted with split point karnasch step drills are designed to drill perfectly round holes in sheet metals of an thickness of 4 - 6 mm.
£144.54 Excl VAT
201466
The karnasch professional step drill made of hss-xe steel and blue dur coating and spiral fluted with split point karnasch step drills are designed to drill perfectly round holes in sheet metals of an thickness 4 - 5 mm. The transition from one step to the next perfectly deburrs the previously drill.
£174.73 Excl VAT
201470
The karnasch professional step drill made of hss-xe steel and blue dur coating and spiral fluted with split point karnasch step drills are designed to drill perfectly round holes in sheet metals of an thickness up to 4,5 mm.
£140.18 Excl VAT
201447
The karnasch professional step drill made of hss-xe steel and blue dur coating and spiral fluted with split point karnasch step drills are designed to drill perfectly round holes in sheet metals of an thickness up to 5mm.
£35.30 Excl VAT
201471
The karnasch professional step drill made of hss-xe steel and blue dur coating and spiral fluted with split point karnasch step drills are designed to drill perfectly round holes in sheet metals of an thickness of 3 - 6 mm.
£113.96 Excl VAT

< 1 > 8 Results