Complete Guide to Korloy Cutting Tools: History, Product Lines & Grade Selection
About Korloy
Korloy Co., Ltd. is a South Korean cutting tool manufacturer established in 1975 in Ansan, Gyeonggi-do, South Korea. The company has grown to become one of Asia’s most respected carbide insert producers, known for delivering excellent performance at highly competitive prices. Korloy operates as an independent brand but shares technological lineage with the IMC Group (Iscar’s parent company), which explains some grade designation similarities between Korloy, Iscar, and TaeguTec. Korloy exports to over 65 countries and is particularly strong in the general machining market, serving small-to-medium machine shops that require reliable tooling on a budget. The company maintains ISO 9001 and ISO 14001 certifications across all manufacturing facilities. With 6,801 products on Hooguu, Korloy offers one of the best price-to-performance ratios in the professional cutting tool market and serves as the benchmark against which value-oriented brands are measured.
Korloy Product Lines
Turning Inserts
Korloy’s turning insert range covers all standard ISO shapes: CNMG, WNMG, DNMG, TNMG, CCMT, TCMT, and VCMT in sizes from 06 to 19. The NC3010, NC3020, and NC3030 grade family forms the backbone of Korloy’s steel turning offerings, covering finishing through heavy roughing. The NC9125 grade is Korloy’s dedicated stainless steel grade with PVD TiAlN coating and sharp cutting edge geometry. For cast iron, the NC6110 and NC6020 grades feature CVD Al2O3 coatings optimized for the abrasive nature of ferritic and nodular iron. Korloy’s SuperFeed Wiper inserts enable high-feed finishing with Ra 0.8 surface quality at 2-3x conventional feed rates. The NCM milling grade series (NCM225, NCM335) provides versatile milling performance.
Milling Cutters
Korloy’s milling portfolio includes the FMA (Face Mill A) series with 45-degree lead angles for general-purpose face milling. The FMR round insert face mills handle heavy roughing in steel and cast iron. The SMP shoulder mill platform uses APMT/APKT inserts for 90-degree square shoulder milling. Korloy also offers the S-STAR solid carbide end mill range with variable helix geometry for vibration-free milling, and the Korloy Endmill series for standard milling in 2-flute and 4-flute configurations. The FMD high-feed mill series delivers aggressive metal removal in mold and die roughing applications.
Drilling Tools
The SP Drill indexable drill system uses SPKT/SPCN style inserts for general-purpose drilling in the 14-63 mm diameter range. Available in 2xD, 3xD, and 5xD configurations with internal coolant channels. Korloy also offers the CD (Carbide Drill) solid carbide drill series in standard and through-coolant versions for diameters from 3 to 16 mm. The U-Drill system provides flat-bottom and spot-drilling capability for pre-drilling and countersinking operations.
Grooving & Threading
Korloy’s MGMN and MGGN grooving inserts cover external grooving and parting-off with widths from 2 to 6 mm. The CCET threading system supports partial and full-profile threading in metric and imperial forms. Korloy threading inserts are available in the NC3020 and NC9125 grades for steel and stainless steel threading respectively. The KGR grooving blade system provides rigid clamping for interrupted cut grooving operations.
Korloy Grade Selection Guide
| Grade | ISO Group | Best For | Coating |
|---|---|---|---|
| NC3010 | P10-P20 | Steel finishing, continuous cuts | CVD TiCN + Al2O3 |
| NC3020 | P20-P30 | Steel general turning | CVD TiCN + Al2O3 |
| NC3030 | P30-P40 | Steel roughing, interrupted | CVD multi-layer TiCN/Al2O3 |
| NC9125 | M15-M30 | Stainless steel turning | PVD TiAlN |
| NC6110 | K10-K25 | Cast iron turning | CVD Al2O3/TiCN |
| NC6020 | K20-K35 | Cast iron roughing | CVD thick Al2O3 |
| NC500H | N05-N15 | Aluminum and non-ferrous | Uncoated polished |
| NCM225 | P20-P35 | Steel milling | PVD TiAlN |
| NCM335 | P30-P45 | Steel rough milling | CVD TiCN + Al2O3 |
| NCM325 | M20-M35 | Stainless milling / HRSA | PVD AlTiN |
Popular Korloy Products on Hooguu
Browse our selection of 6,801 Korloy cutting tools on Hooguu. Korloy is the value benchmark in our catalog, offering reliable performance across all standard CNC machining operations at the most competitive price points. From NC3020 general-purpose turning inserts to FMA face mills, SP Drills, and MGMN grooving tools, we carry the complete Korloy range for budget-conscious shops that demand quality.
Korloy vs Alternatives
| Application | Korloy Grade | Iscar Equivalent | Sandvik Coromant | Notes |
|---|---|---|---|---|
| Steel finishing | NC3010 | IC908 | GC4315 | Korloy is 20-30% cheaper; premium brands offer 10-15% longer tool life |
| Steel general | NC3020 | IC808 | GC4325 | Industry-standard value grade; Korloy matches premium in stable conditions |
| Steel roughing | NC3030 | IC830 | GC4335 | Korloy handles most roughing well; premium brands edge ahead in severe cuts |
| Stainless steel | NC9125 | IC907 | GC2220 | Good for standard SS; premium brands perform better in tough austenitic grades |
| Cast iron | NC6110 | IC8250 | GC3225 | Very comparable; Korloy offers best value for high-volume CI production |
| Aluminum | NC500H | IC5500 | – | Identical specification to Iscar IC5500; no reason to pay premium |
Why Buy Korloy from Hooguu
Hooguu carries 6,801 Korloy products, making us one of the largest online distributors of this popular Korean cutting tool brand. Korloy represents the best value in professional-grade indexable inserts, offering reliable performance for standard machining operations at prices that significantly undercut premium brands. For shops running high-volume production on standard materials, Korloy delivers the lowest cost per part. Shop genuine Korloy products at hooguu.com/brand/korloy/ for unbeatable value, fast shipping, and expert support.
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