|Clearance Angle:||0 °|
|Insert Size:||1 in|
|Corner Radius:||3⁄32 in|
|ANSI Code:||SNMM 866-MR 4225|
|Cutting Edge Length:||1.000 in|
|Hole Type:||Straight Hole|
|ISO Code:||SNMM 866-MR 4225|
|Included Angle:||90 °|
|Number of Cutting Edges:||4|
|Through-Hole ID:||0.359 in|
|Manufacturer Part Number:||SNMM 866-MR 4225|
Compliance and Restrictions
Country Of Origin
About Square (S) Turning Inserts
Recommended for external turning applications such as facing, these square inserts have a 90° point angle and provide the second-strongest cutting edge of all the insert shapes. Square inserts are recommended for roughing applications and intermittent cutting.
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.