Click here to watch Tutorial Videos >

New Inserts and Grades for Turning

The new Pramet inserts and grades are suitable for steel and cast iron, high temperature alloys and stainless steel.

Dormer Pramet has introduced Pramet chip breakers and grades. The NF1 and NF2 positive chip breakers support turning applications in stainless steel while the FF2, FM2 and RM3 chip breakers support steel and cast iron. The SF2 and SF3 positive inserts are designed for S-group materials and high performance alloys.

The NF1 is a universal chip breaker for fine finishing to medium machining, peripherally ground to provide a good surface finish. The versatile NF2 chip breaker incorporates a small stabilizing T-Land and covers a wide range of applications from semi-finishing to light roughing.

The FF2 chip breaker has a positive rake angle and depth of cut from 0.01" for fine finishing applications in low carbon steels. The FM2 chip breaker is for finishing to medium machining and features a protective land suitable for continuous and interrupted operations. The highly resistant RM3 chip breaker is for roughing applications in steels and cast irons and suitable for unfavorable machining conditions.

"The SF2 and SF3 positive inserts provide a secure and dependable option for turning applications for S-group materials and high performance alloys," said a company spokesperson. The SF2 chip breaker is for fine turning at the lowest possible feeds while the SF3 chip breaker, with its positive inclined cutting edge, supports finishing operations. Especially effective when used on small and slender components, both inserts offer a sharp cutting edge with minimal radius. "This promotes low cutting forces, which in turn prevents work hardening and produces a high quality surface finish," said the spokesperson.

Finishing off this new Pramet offering is the T7325 grade for productive machining of stainless steels. It has been developed to complement the existing T7335 grade, which is recommended for use in unstable machining environments. Suitable for interrupted cutting, the latest T7325 grade features a functional gradient substrate and special MT-CVD coating. "This combination offers high cutting strength, reduced built-up edge and resistance to the formation of cracks. As a result, the grade provides a high level of operational reliability, performance and tool life," said the spokesperson.

Watch the new Pramet range in action on Dormer Pramet's YouTube channel (

For more information contact:

Dormer Pramet

2511 Technology Drive

Suite #113/#114

Elgin, IL 60124


< back

Email   email