Korloy 80° Diamond CNC Turning Inserts

Korloy CC / CP 80° Diamond CNC Turning Inserts — Genuine Korloy Grade Indexable Positive Inserts

The Korloy CC / CP 80° diamond insert series covers the full range of positive rake 80° rhombic turning operations — from precision finishing in steel and stainless steel to mirror-finish profiling on aluminum and non-ferrous alloys. Every insert on this page is manufactured by Korloy Corporation (South Korea, founded 1966), one of Asia's largest carbide insert producers, and shipped from CNCHome-Beyond's Hangzhou-Binjiang warehouse with same-day dispatch on orders before 16:00 China time.

This collection includes 47 genuine Korloy items across two ISO families — CCMT (38 inserts, with chip-breaker, for steel & stainless) and CCGT (9 inserts, ground periphery, for aluminum & non-ferrous) — plus the cermet-grade CN2000 for steel mirror-finish work. Pricing starts at $0.35 / insert for entry-grade uncoated H01 aluminum blades and tops out around $1.05 / insert for premium CVD-coated NC3220 in the 32.51 geometry. Every box ships with 10 inserts.

What you can do with this collection

Grade selection — which Korloy grade for your workpiece

Korloy uses a single-letter prefix to denote the coating family, followed by a 4-digit code that maps to a specific ISO workpiece group. The grade you pick drives 70% of tool life.

Quick picker rule of thumb: aluminum → H01 · steel finishing → CN2000 or NC3120 · steel general → NC3020 · steel roughing / interrupted → NC3030 · stainless → PC9030 · cast iron → NC6110 / NC6210. If you only buy one grade, NC3020 is the safe default for mixed-shop steel work.

How to read the Korloy CC/CP designation

The ISO 1832 code on every Korloy CCMT/CCGT box tells you the geometry and tolerance class. Example: CCMT 09T304-HMP NC3020.

Other chip-breaker codes you will see in this collection: PF (low-feed profiling), C25 (heavy finishing), GR (aluminum grinding geometry). Full-chipbreaker compatibility is on the Korloy brand page.

Featured SKUs — best-selling picks from this collection

Recommended starting parameters

About Korloy

Korloy Corporation was founded in 1966 in Seoul, South Korea, and has grown into one of Asia's largest cemented-carbide insert manufacturers. Today the company operates R&D centers in Korea and Germany, a global distribution network spanning 60+ countries, and a manufacturing footprint that includes state-of-the-art coating facilities for both CVD and PVD grades. Korloy holds more than 400 active patents in cutting-tool geometry, and is recognized for its MultiTec™ multi-layer CVD coating and the Cermet-G family of cermet grades (CN2000 series).

Every insert in this collection is 100% genuine Korloy — sourced through authorized distribution, original Korloy packaging, original lot-traceability label, and shelf-life ≥ 75% on arrival.

Frequently asked questions