Product Description

135° Split Point – M42 Cobalt – NAS 907J. Manufactured from M42 HSS containing 8% cobalt which increases high red hardness. Cobalt drills require rigidly held positive feed drilling equipment. Titanium Aluminum Nitride can be used in machining stainless steel, nickel based and titanium alloys, not recommended for aluminum.

M42 exhibits excellent wear resistance by virtue of high heat-treated hardness (68 to 70 HRC), and the high cobalt content imparts the hot hardness.

As such, the cutting edges on tools made from M42 super high speed steel stay sharp and hard in heavy-duty and high-production cutting applications. M42 is also “less prone” to chipping when used for interrupted cuts and costs less when compared to the same tool made of carbide.

Reminder, that the cutting edge chipping is never acceptable and all efforts should be made to minimize or eliminate.

Features:

• Manufactured from M42 high speed steel contains 8% cobalt increasing hot hardness.
• Cobalt drills require rigidly held positive position feed drilling equipment.
• Recommended use to drill hard tough metals, free machining stainless steel, titanium alloys and certain abrasive plastics.
• Proudly manufactured in the USA

Additional Information