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Round (R) Turning Inserts

Round (R) Turning Inserts

Featuring the largest point angle of all the insert shapes, these round inserts provide the strongest cutting edge of any insert shape. They are recommended for external turning applications with heavy cutting forces and vibration and high feed rates, such as plunging, roughing, 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.

Best for Steel (P)

These turning inserts are the first choice for machining steel.

RCMT Insert Style — 05 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 06 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 08 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 09 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 16 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 19 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 20 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 25 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 32 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 16 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 20 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 25 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 32 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RNMG Insert Style — 09 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 15 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 19 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 25 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

Best for Stainless Steel (M)

When machining stainless steel, use these turning inserts for best results.

RCMT Insert Style — 05 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 06 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 08 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 09 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 16 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 19 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 20 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 25 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 32 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RNMG Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 19 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMX Insert Style — 38 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMX Insert Style — 50 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

Best for Heat-Resistant Materials (S)

Choose from a range of turning inserts that perform well when machining on heat-resistant materials.

RCGX Insert Style — 06 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 09 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 05 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 06 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 08 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 09 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 16 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RNGN Insert Style — 09 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 19 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 25 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 19 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RPGN Insert Style — 06 Seat Size

Negative (Extended-Life) Rake — 11 ° Clearance Angle — Neutral

Positive (Smooth-Finish) Rake — 11 ° Clearance Angle — Neutral

RPGN Insert Style — 09 Seat Size

Negative (Extended-Life) Rake — 11 ° Clearance Angle — Neutral

RPGN Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 11 ° Clearance Angle — Neutral

Positive (Smooth-Finish) Rake — 11 ° Clearance Angle — Neutral

RPGX Insert Style — 06 Seat Size

Positive (Smooth-Finish) Rake — 11 ° Clearance Angle — Neutral

RPGX Insert Style — 09 Seat Size

Negative (Extended-Life) Rake — 11 ° Clearance Angle — Neutral

Positive (Smooth-Finish) Rake — 11 ° Clearance Angle — Neutral

RPGX Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 11 ° Clearance Angle — Neutral

Positive (Smooth-Finish) Rake — 11 ° Clearance Angle — Neutral

Best for Hardened Materials (H)

Use these turning inserts for good performance when machining hardened materials.

RNGA Insert Style — 09 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

Best for Cast Iron (K)

Get good results when machining on cast iron with these turning inserts.

RCMT Insert Style — 08 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 16 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 20 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RNGN Insert Style — 06 Seat Size

0 ° Clearance Angle — Neutral

RNGN Insert Style — 09 Seat Size

0 ° Clearance Angle — Neutral

RNGN Insert Style — 12 Seat Size

0 ° Clearance Angle — Neutral

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 15 Seat Size

0 ° Clearance Angle — Neutral

RNGN Insert Style — 25 Seat Size

0 ° Clearance Angle — Neutral

RNMG Insert Style — 09 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 19 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNMG Insert Style — 25 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

Best for Nonferrous Metals (N)

Machine aluminum and other nonferrous materials with these turning inserts.

RCGX Insert Style — 06 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 08 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

For Universal Use

A good choice for a range of materials, these turning inserts can be used for a variety of machining tasks on different materials.

RCGX Insert Style — 06 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 09 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 15 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 19 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCGX Insert Style — 25 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 05 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 06 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 08 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 09 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 16 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 20 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 25 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMT Insert Style — 32 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 10 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 16 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 20 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RCMX Insert Style — 25 Seat Size

Positive (Smooth-Finish) Rake — 7 ° Clearance Angle — Neutral

RNGA Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 09 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 12 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 15 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 19 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RNGN Insert Style — 25 Seat Size

Negative (Extended-Life) Rake — 0 ° Clearance Angle — Neutral

RPGN Insert Style — 09 Seat Size

Positive (Smooth-Finish) Rake — 11 ° Clearance Angle — Neutral

RPGX Insert Style — 09 Seat Size

Positive (Smooth-Finish) Rake — 11 ° Clearance Angle — Neutral

RPGX Insert Style — 12 Seat Size

Positive (Smooth-Finish) Rake — 11 ° Clearance Angle — Neutral