Selection Guide

Insert Carbide Grades

Uncoated Grades

C1

  • Is a strong micrograin carbide which resists chipping, breaking, and edge build-up. Great for roughing at high feed rates on interrupted cuts. Use for titanium, high temperature alloys, inconel, and hastalloy.

C2

  • Is a relatively fine grain grade on a WC-CO base. It has very good toughness and good rake angle resistance to abrasive wear. Applications include stainless steels, cast irons, non-ferrous metals, and most high temperature alloys.

C7

  • Finish and light roughing non-coated grade for steel and steel castings. Performs best in favorable conditions. High speeds and moderate feeds.

Titanium Coated Grades

TN

  • Discontinued, replaced by TT.

TT

  • Is a very tough grade with a triple coating of Tin, TiC, and TiN. It is a good grade for roughing and finishing in less than ideal conditions. Used in machining steels and stainless steels at low speeds.

TE

  • Is a carbide grade with a PVD coating. It is used for machining aerospace materials, high temperature alloys, and stainless steels.

TR

  • Is a PVD coated micrograin carbide. Performs well in alloy steels, nickel-based materials, and heat-treated materials up to RC 40.

SN

  • Delivers outstanding performance in moderate-roughing to semi-finishing operations, especially in interrupted cuts. An advanced multi-layer coating (TiCN/AI2 O3 /TiN), applied over a cobalt enriched substrate, gives SN a near optimum balance of toughness, surface lubricity, and resistance to metal build-up to yield excellent wear resistance throughout its application range.

VN

  • Is a micro-grained grade with an excellent balance of toughness and wear resistance. Coated with PVD TiN for improved lubricity and wear resistance with up-sharp cutting edges, VN excels in light roughing to high-speed finishing of high-temperature alloys, stainless steels, cast iron, aluminum, and non-ferrous materials.

Cermet Grades

CT

  • Is a cermet grade of TiC and TiN particles in a nickel cobalt binder. It is used in finishing steels at high cutting speeds.

CM

  • Is a cermet grade. It is slightly less hard than CT and can be used in less favorable conditions.

CR

  • Is a titanium nitride cermet which combines toughness and edge wear. Use on steels up to RC 35.

CC

  • A titanium coated cermet for better wear resistance.

Aluminum Oxide Coated Grades

AL

  • Is an AL2 O3 coated insert. Its application is machining cast iron and steels at moderately high speeds.