Drillco 6400A Series High-Speed Steel Regular Length Center Cutting End Mill, Uncoated (Bright) Finish, 2 Flute, 30 Degrees Helix, Ball Nose End, 1-5/16" Cutting Length, 3/4" Cutting Diameter, 3-5/16" Length, 1/2" Shank Diameter

Drillco ball nose end mills have rounded end cutting edges. This style of end mill is available as a center cutting tool only. It is used where rounded details must be machined in a part (for example, a slot with a rounded bottom). It is also used where sharp machined corners must be avoided. Ball nose end mills are also widely used for delicate cuts on contoured surfaces of molds and dies. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Weldon shanks feature a round shank with one of more flats machined into the side for easy indexing and alignment. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

• High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
• Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
• Weldon shanks feature a round shank with one of more flats machined into the side for easy indexing and alignment
• When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
• Ball nose end mills are also widely used for delicate cuts on contoured surfaces of molds and dies