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Kyocera CNMG120404GP CA125P TMK00073 - General CNC Turning

Kyocera CNMG120404GP CA125P TMK00073 - General CNC Turning
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Kyocera CNMG120404GP CA125P TMK00073 - General CNC Turning
$4.41 USD
$7.35 USD
1 or more $4.41 USD
  • Stock: In Stock
  • Model: CA125P
  • Weight: 0.10kg
  • Manufactured: In Japan
  • Ships: Worldwide
  • Item Code: TMK00073
This product has a minimum quantity of 10
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Kyocera CNMG120404GP CA125P — Turning Insert

Product Overview

The Kyocera CNMG120404GP with grade CA125P (MPN: TMK00073) is a premium indexable carbide insert engineered for General CNC Turning. Manufactured in Japan to stringent ISO 9001 quality standards, this insert delivers exceptional cutting performance, dimensional stability, and extended tool life across general cnc turning applications. The GP - General Purpose geometry ensures optimal chip formation and evacuation, reducing machine downtime and improving surface integrity.

ISO Designation Breakdown

PositionCodeParameterSpecification
1CInsert Shape80° Rhombic (Diamond)
2NClearance Angle0° (Normal)
3MTolerance Class±0.08mm (IC), ±0.13mm (T)
4GInsert TypeHole + Chipbreaker (One-sided)
5–612Cutting Edge Length (IC)12.7mm (1/2")
7–804Insert Thickness4.76mm (3/16")
9–1004Nose Radius0.4mm
11+GPChipbreaker StyleGP - General Purpose

Engineering Dimensions & Geometry

DimensionMetricImperialTolerance
Inscribed Circle (IC)12.7 mm1/2"±0.08 mm
Insert Thickness (S)4.76 mm3/16"±0.13 mm
Nose Radius (rε)0.4mm0.0157"+0.10 / -0.05 mm
Clearance Angle (α)±0.5°
Inscribed Circle Diameter (d)12.7 mm1/2"±0.08 mm

Grade Details — Key Grade Characteristics

PropertyValue / Description
Grade DesignationCA125P
Substrate CompositionUltra-fine grain tungsten carbide (WC-Co)
Coating TechnologyPVD Multi-layer (TiAlN + TiN)
Hardness (HRA)HRA 91.5
Transverse Rupture Strength≥ 2,800 MPa
Coating ColorCopper-Bronze
ISO Application RangeP15–P35, M15–M25, K15–K25
Max Operating Temperature900°C (1,652°F)
Application ClassSemi-finishing to medium roughing

Grade Comparison Matrix

GradeCoatingISO RangeBest ForSpeed Capability
CA125PPVD TiAlN/TiNP15-P35 / M15-M25 / K15-K25Steel, SS, Cast IronMedium-High
CA5525CVD Al₂O₃ + TiCNP05-P25Steel, High-speedHigh
PR930PVD TiAlNP10-P30 / M10-M20General SteelMedium
TN60Ceramic (Si₃N₄)H01-H20Hardened SteelVery High

Chipbreaker Profile

The GP - General Purpose chipbreaker geometry is specifically engineered for general turning, continuous to light interrupted. The land width and groove depth have been optimized through finite element analysis (FEA) to provide stable chip curling and controlled breakage across the recommended parameter window. This reduces chip entanglement, protects finished surfaces, and extends tool life by minimizing thermal cycling at the cutting edge.

ParameterRangeOptimal
Depth of Cut (ap)0.10–1.20 mmMid-range
Feed Rate (fn)0.08–0.35 mm/revMid-range
Chip FormC-shaped / Short spiralControlled breakage

Recommended Applications & Workpiece Materials

The CA125P grade combined with the GP - General Purpose geometry makes this insert highly versatile for the following material groups and industrial sectors:

  • Carbon Steels (C15–C60, 1018–1060): Excellent balance of wear resistance and toughness for continuous and lightly interrupted cuts.
  • Alloy Steels (4140, 4340, 8620): High crater wear resistance due to PVD coating; stable performance at elevated cutting temperatures.
  • Stainless Steels (304, 316, 420): Reduced built-up edge (BUE) tendency; good surface finish on austenitic grades.
  • Cast Irons (GG25, GGG40, GGG50): Reliable performance on both gray and ductile iron; minimal edge chipping.
  • Tool Steels (D2, H13, O1): Suitable for pre-hardened and annealed conditions; not recommended for >45 HRC without adjusted parameters.

Application Map by Operation

OperationSuitabilityRecommended apRecommended fnNotes
External Turning★★★★★0.10–1.20 mm0.08–0.35 mm/revPrimary application
Internal Turning★★★★☆0.10–1.20 mm0.08–0.35 mm/revUse appropriate boring bar
Face Turning★★★★☆0.10–1.20 mm0.08–0.35 mm/revEnsure rigidity
Profiling★★★☆☆0.05–0.50 mm0.05–0.15 mm/revLimited by nose radius
Grooving★☆☆☆☆Not recommended
Parting Off☆☆☆☆☆Not recommended

Recommended Cutting Conditions

The following parameters are starting recommendations for the CNMG120404GP CA125P under stable machining conditions with adequate coolant delivery. Always optimize for your specific machine rigidity and workpiece setup.

Workpiece MaterialBrinell HardnessCutting Speed (m/min)Feed (mm/rev)Depth of Cut (mm)
Low-Carbon Steel (C < 0.25%)125–175 HB180–2500.08–0.350.2–1.5
Medium-Carbon Steel (0.25–0.55%)150–250 HB150–2200.08–0.300.2–1.2
Alloy Steel (Cr-Mo, Ni-Cr)180–280 HB120–1800.08–0.250.2–1.0
Stainless Steel (Austenitic)150–200 HB100–1600.08–0.250.2–1.0
Gray Cast Iron (HB 180–260)180–260 HB120–1800.10–0.300.2–1.5

Operating Guidelines

  • Run-out Check: Ensure insert seat run-out is <0.01 mm to prevent uneven wear and premature failure.
  • Torque Specification: Tighten clamping screw to 2.5–3.5 N·m (22–31 in·lb). Over-tightening causes micro-cracking; under-tightening causes vibration.
  • Coolant Recommendation: Use water-miscible cutting fluid at 6–8% concentration for steel and stainless steel. For cast iron, dry machining or minimum quantity lubrication (MQL) is acceptable.
  • Entry Angle: Maintain a lead angle (κr) of 75°–95° for optimal chip control and reduced radial forces.
  • Edge Preparation: This insert features a honed T-land (0.05 mm × 20°). Do not attempt additional hand-honing.
  • Inspection: Inspect the cutting edge under 10× magnification after every 30 minutes of cutting time. Replace if flank wear (VB) exceeds 0.3 mm or if chipping >0.1 mm is observed.

Toolholder Compatibility

The CNMG120404GP conforms to ISO 1832 and is compatible with standard C-type (80° rhombic) toolholders. Select holder size to match the insert inscribed circle (IC) for proper clamping and chip evacuation clearance.

Holder StyleDesignation ExampleInsert SizeClampingApplication
External TurningMCLNR/L 2525M1212 (1/2")Lever lockOD turning, facing
Internal BoringSCLCR/L 08 1212 (1/2")Screw clampMedium bore ID

Packaging & Ordering Information

AttributeDetails
Manufacturer Part Number (MPN)TMK00073
Standard Pack Quantity10 inserts per plastic box (industrial blister pack)
Individual Insert MarkingLaser-etched: CNMG120404GP + CA125P + batch code
Shelf Life (unopened)10 years when stored in original packaging at 15–25°C, <60% RH
Country of OriginJapan
WarrantyFull manufacturer warranty against material and workmanship defects

Catalog Meta Data

FieldValue
Product FamilyKyocera Turning Inserts — CA Series
SeriesC-Type (80° Rhombic) Negative Inserts
Grade FamilyPVD Coated Carbide (CA125P)
Chipbreaker FamilyGP - General Purpose
Insert StandardISO 1832:2017 / ANSI B212.4
ECCNEAR99 (General Industrial Use)
HS Code8209.00.00 (Indexable Inserts)
RoHS StatusCompliant (Directive 2011/65/EU)
REACH StatusCompliant (No SVHC >0.1% w/w)

Need application support? Our CNC tooling specialists can help you select the optimal grade, geometry, and cutting parameters for your specific material and operation. Contact us via the support portal or live chat for technical assistance.

Shipping & Stock Information │ 発送・在庫情報

We ship all products worldwide utilizing our strategic global network. To ensure the fastest dispatch times and optimal customs clearance, items are fulfilled and shipped directly from our primary corporate distribution facilities.

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  • In-stock items (在庫あり): Dispatched with precision from the nearest regional hub within 3 business days.
  • Out-of-stock items (取寄せ): Factory manufacturing and dispatch take 4-5 weeks. Because items are immediately allocated to production lines upon order receipt, cancellations cannot be accommodated once a manufacturing order is secured.
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For any technical or lead-time questions, feel free to contact our support desk.

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To guarantee absolute accuracy for your machining requirements, please cross-reference the exact Kyocera Item Code, Item Name, and Material Grade.

🔹How to Proceed with Your Purchase:

  • Use the official Kyocera Item Code and Grade specification to verify exact dimensions and compatibility before purchasing.
  • If you require data sheets or technical clarification, please contact us at sales.kyotow@gmail.com.

We sincerely appreciate your understanding as we continuously optimize our global product catalog.

Refund & Cancellation Policy │ 返品・キャンセルポリシー

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We offer a full refund or replacement if the verified Kyocera part number of the item received differs from the official item code specified in your order confirmation.

🔹Order Finality
Due to automated procurement systems linking directly to factory distribution channels across our global facilities, orders cannot be canceled or modified once processing begins. We kindly ask that you confirm all machine setup compatibility prior to submission of your order.

🔹Need Assistance? (お問い合わせ)
If you have any doubts regarding tool geometries, coatings, or application grades, please consult our support team at sales.kyotow@gmail.com before finalizing your procurement.

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Why are our prices so low? (価格が安い理由): Kyotow sources genuine Kyocera tools directly from domestic Japanese distribution networks, completely bypassing the steep regional markups, localized sales overhead, and heavy middleman margins of Western distributors. We pass 100% of those structural savings directly to your machine shop.
Kyotowは日本の国内流通ネットワークから京セラ正規品を直接仕入れることで、欧米の現地代理店による大幅な上乗せ価格や営業コスト、中間マージンを完全に排除しています。その構造的メリットを、お客様の加工現場へ100%還元いたします。

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日本国内直接調達

Procured straight from Japan's local wholesale networks to capture maximum market arbitrage.

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100% メーカー正規品

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