|Clearance Angle:||0 °|
|Insert Size:||3⁄4 in|
|Corner Radius:||1⁄16 in|
|For Use On:||Heat Resistant Alloys|
|ANSI Code:||CNMG 644-SM 1105|
|Cutting Edge Length:||0.762 in|
|Feed Type:||Medium Feed|
|Hole Type:||Straight Hole|
|ISO Code:||CNMG 644-SM 1105|
|Included Angle:||80 °|
|Material Application ISO Number (First Choice):||S|
|Number of Cutting Edges:||4|
|Through-Hole ID:||0.312 in|
Compliance and Restrictions
Country Of Origin
About Rhombic (C) 80° Turning Inserts
Providing the best balance of cutting-edge strength and operational versatility of all the insert shapes, these rhombic inserts have an 80° point angle and are a good choice for a wide range of longitudinal turning applications. With a cutting edge that is stronger than a trigon insert but less strong than a square insert, they are recommended for facing, roughing, light roughing, and semi-finishing applications.
Insert shapes are available with a range of point angles. In general, inserts with a large point angle have a stronger cutting edge but produce more vibration and require more machine power than inserts with a small point angle. Inserts with a small point angle are more versatile, provide better accessibility for detailed cutting, produce less vibration, and require less machine power than inserts with a large point angle, but they have a weaker cutting edge and may be more prone to heat damage.
Inserts are available with a negative or positive basic shape. Negative inserts have a 0° clearance angle. They provide good edge strength and are recommended for external turning and heavy cutting applications. Double-sided negative inserts offer twice as many cutting edges as positive inserts, but single-sided negative inserts provide the best stability in heavy roughing applications. Positive inserts have a clearance angle that is greater than 0° and are a good choice for internal turning applications and external turning applications on slender workpieces. Positive inserts are single sided and produce lower cutting forces than negative inserts.
Choose from a range of turning inserts that perform well when machining on heat-resistant materials.