Viking Drill and Tool St. Paul MN
America's Finest High-Speed Steel Cutting Tools™

Proudly Manufactured in the USA

M42 Cobalt 1/2" Reduced Shank

M42 Cobalt 1/2" Reduced Shank 135° Split Point
M42 Cobalt 1/2" Reduced Shank 135° Split Point

— Gold oxide for use in drilling hard tough metals, free machining stainless steel,
     high temperature alloys, titanium.
— High red hot hardness of cobalt steel permits speeds 30% higher than
     regular high speed steel drills.
Cobalt increases the strength of the steel and makes it more heat-resistant.
Proudly manufactured in the USA.

Adobe Acrobat Logo PDF — M42 Cobalt 1/2" Reduced Shank


Coatings for High Speed Steel
One of the more recent developments in coatings for High Speed Steel is Titanium Nitride
is a bright gold ceramic coating applied to metallic surfaces by the physical vapour deposition (PVD) process
. TiN coatings is widely used to extend the life of a cutting tool, significantly improve the tool life and performance of cutting tools, where a cost effective reduction in tool wear is required. This coating is known to allow the tool to be used at higher operating speeds. Cutting tool life can be extended by as much as three times, and operating speeds can be increased up to 50%.