OEM CNC Inserts

We are a OEM/ODM manufacturer of precision CNC carbide inserts supplying distributors, cutting-tool brands, and end users worldwide. From a 2D drawing, a worn sample, or a standard ISO insert code (e.g. CNMG, SNMM, WNMG, DCMT, VCGT, RCMT), we reverse-engineer the geometry, match the grade and coating to your workpiece material, and deliver inserts that hold tolerance lot after lot.

  • One-off prototypes to high-volume production — pilot lots of [50–200] pcs before scale-up.
  • Grade + geometry + coating tuned to your application, not a generic catalog.
  • In-house pressing, HIP sintering, grinding, edge prep, coating, and inspection.
  • Your brand, your packaging — private-label laser marking, custom box, and barcode/QR.

Why buyers choose {Zhuzhou Century Tool }

Made to spec

Insert geometry, tolerance class, edge treatment and chipbreaker built to your drawing or sample — with a first-article inspection report on request.

Material-matched grades

P / M / K / N / S / H ISO application classes with substrate and coating matched to your workpiece — no "one grade fits all".

Consistent batches

HIP-sintered blanks, CNC ground edges (±[0.005–0.01] mm on key dimensions), and SPC inspection keep insert-to-insert variation low.

Full OEM/ODM

Custom laser marking, company logo, individual packaging and multilingual labels. We ship as your brand.

Fast turnaround

Quotation within [24–48] h; samples typically [7–15] days depending on geometry and grade.

Export-ready

Complete documentation, packing lists, and logistics support for worldwide shipping.

Specifications

Typical values — final specification is confirmed per drawing / application.

Parameter

Range / Options

Product type

Turning, facing, boring, milling, grooving, threading, cut-off / part-off

ISO shapes

S (square), T (triangle), C (80° rhombic), D (55° rhombic), V (35° rhombic), W (trigon), R (round), K (parallelogram)

Standard codes

CNMG / CNMM, SNMG / SNMM, TNMG, WNMG, DNMG, DCMT, VCMT / VCGT, RCMT, TCMT, and custom

Substrate

Tungsten carbide (WC-Co), ISO P / M / K / N / S / H families

Common grades

YG series (K-class), YT series (P-class), YW universal, plus coated equivalents [list your grade codes]

Coating

Uncoated, PVD (TiN, TiCN, TiAlN, AlTiN, AlCrN), CVD (TiCN / Al₂O₃ / TiN multilayer)

Coating thickness

PVD [2–5] µm · CVD [8–20] µm

Hardness

Substrate [89–93] HRA (grade-dependent); coating [1,600–3,500] HV

Tolerance class

ISO G (ground) / M / U classes; key dimensions to ±[0.005–0.01] mm

Edge prep

Sharp, honed, T-land, or radius per application

Chipbreaker

Application-specific (finishing, medium, roughing)

Inscribed circle

[6.35 – 25.4] mm (standard); custom on request

Thickness

[2.38 – 9.52] mm (standard); custom on request

Coating color

Gold, black, bronze, grey, or custom

Marking

Laser-marked your grade / logo / batch code

Materials & grades — matched to your workpiece

The right insert is a grade + coating + geometry system tuned to what you are cutting. Tell us the workpiece and we recommend the combination:

Workpiece material

ISO class

Typical substrate / coating

Carbon & alloy steel

P

YT-class substrate + TiCN/Al₂O₃ CVD or TiAlN PVD

Stainless steel (e.g. 13-8, 304, 316)

M

Tough substrate + AlTiN / AlCrN PVD for built-up-edge control

Cast iron

K

YG-class (WC-Co) substrate, often uncoated or CVD

Aluminium & non-ferrous

N

Fine-grain / uncoated PVD grade for sharp, polished edges

Titanium & superalloys

S

Heat-resistant substrate + AlTiN / AlCrN PVD

Hardened steel / HRC 45+

H

Cermet or PVD-coated hard grade

Not sure which grade fits? Send us your workpiece material, hardness, machine, and cutting conditions — we will recommend grade, coating, geometry and starting parameters (Vc / feed / DOC).

Coating options

  • PVD coatings — thin, sharp-edge-friendly films that keep the cutting edge keen while resisting wear and built-up edge. Ideal for stainless, titanium, and precision finishing. Options: TiN, TiCN, TiAlN, AlTiN, AlCrN.
  • CVD coatings — thicker, thermally stable multilayer coatings (TiCN / Al₂O₃ / TiN) for high-speed continuous turning of steel and cast iron.
  • Uncoated — polished, ground, sharp edges for aluminium, non-ferrous, and applications requiring the sharpest possible edge.
  • Custom color & layer stack — match your catalog's brand color where needed.

Geometry & chipbreaker

  • Shapes & codes: standard ISO insert shapes and codes, plus non-standard geometries to drawing.
  • Chipbreaker: finishing (-F), medium (-M), and roughing (-R) profiles matched to your feed and depth of cut.
  • Edge treatment: sharp / honed / T-land / radius — chosen for edge strength vs. cutting force.
  • Corner radius (RE): defined to drawing, e.g. 0.2 / 0.4 / 0.8 / 1.2 mm.
  • Custom geometry: special rake angles, wipers, and profiles developed from your sample or drawing.

Tolerance & quality control

  • Blanks: precision-pressed with tight green-spec control, then HIP-sintered for density and structural uniformity.
  • Grinding: peripheral, top/bottom and five-axis CNC grinding for geometry and edge accuracy.
  • Inspection: dimensional checks, hardness testing, coating thickness measurement, and first-article inspection (FAI) reports available.
  • Traceability: batch codes on every insert for lot-level traceability from powder to packed goods.
  • Documents on request: dimensional report, material certificate, and inspection record.

OEM / ODM customization

We build inserts that are your product:

  • Drawings & samples: work from 2D/3D drawings, a physical sample, or a standard ISO code.
  • Your brand: laser-marked logo, grade code, and batch number.
  • Packaging: custom plastic boxes, labels, barcodes/QR, multi-language inserts, and master carton branding.
  • Private label ready: ship in your packaging as your own brand — we do not sell to your customer list.
  • NDA-friendly: confidentiality agreement signed before drawings are exchanged.

Applications

OEM inserts from Zhuzhou Century Tool are used across:

  • Automotive & powertrain — turning and milling of steel, cast iron and aluminium components.
  • Aerospace & energy — heat-resistant alloys, titanium, and stainless machining.
  • Mold & die — hardened steel finishing and profiling.
  • General machining & job shops — mixed-material turning, grooving, threading and cut-off.
  • Hydraulic, bearing & heavy equipment — bearing rings, shafts, and heavy turning (SNMM / CNMM class).

How our OEM process works

  1. Inquiry & review — send drawing / sample / ISO code + workpiece details + target quantity.
  2. Quotation & recommendation — we confirm geometry, grade, coating and pricing; samples quoted separately.
  3. Sampling & approval — pilot lot produced; you test on your machine and approve, with adjustments if needed.
  4. Production & delivery — batch production with in-process QC, then packing, marking and export shipping.

Typical lead times: quotation [24–48] h · samples [7–15] days · production [20–35] days (geometry- and quantity-dependent).

Packaging & shipping

  • Unit: plastic box / blister with your label, optional anti-rust protection for coated edges.
  • Carton: double-wall export carton with your branding; barcode/QR and packing list.
  • Logistics: express (samples), air and sea freight; we support DDP/FOB terms and full export documentation.

FAQ

Q: What is your MOQ? A: 500 pcs per geometry for production, with lower-pilot-lot quantities available for sampling and approval.

Q: Can you make inserts from just a drawing? A: Yes. Send a 2D/3D drawing, a sample, or an ISO code with the workpiece details and we will confirm feasibility, grade and price.

Q: Can I put my own brand on the inserts and packaging? A: Absolutely — laser marking, labels, boxes and cartons can all carry your brand. NDA available before drawings are shared.

Q: Do you provide test samples before mass production? A: Yes. We produce a pilot lot for your machining trial and only proceed to production after your approval.

Q: How do you guarantee batch consistency? A: HIP-sintered blanks, CNC-ground edges, SPC inspection and batch traceability keep tolerances and performance stable lot to lot.

Q: What information do you need for a quote? A: Insert drawing / sample / ISO code, workpiece material and hardness, machine type, cutting conditions, target quantity, and packaging requirements.

CTA (page footer block)

Send us your drawing and get a quotation within 24–48 hours.

Send Your Drawing · Request a Sample · Email info@zzcarbidetool.com

Zhuzhou Century Tool Co., Ltd — OEM/ODM carbide inserts, manufactured to your specification.

Address: Build No.14,Yunshanshiyi, Hangkong Rd, Lusong Distr., Zhuzhou City, Hunan Province, China  ·

WhatsApp +0086-17716763095   Email:info@zzcarbidetool.com

 https://zzcarbidetool.com

 

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