Kyocera CNMG120408XP CA125P TMK00119 Turning Insert - General Purpose

Name: Kyocera CNMG120408XP CA125P TMK00119 Turning Insert - General Purpose
Brand: Kyocera
Price: 4.41 USD
Availability: InStock

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Kyocera CNMG120408XP CA125P TMK00119 Turning Insert - General Purpose

$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: TMK00119

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Product Overview

The Kyocera CNMG120408XP is a precision-engineered Single-Sided Negative with Hole featuring the advanced CA125P grade. Designed for general purpose & medium roughing, this insert delivers exceptional performance across steel, alloy steel, stainless steel applications. The XP chipbreaker geometry ensures optimized chip evacuation, reduced cutting temperatures, and extended edge life even under demanding production schedules.

With an inscribed circle of 12.7 mm (1/2"), thickness of 4.76 mm (3/16"), and a corner radius of 0.8 mm, the CNMG120408XP offers the ideal balance of cutting edge strength and surface finish capability. Manufactured in Japan under strict ISO 9001 quality protocols, every insert is guaranteed to meet OEM specifications for dimensional accuracy and metallurgical consistency.

ISO Designation Breakdown

Position	Code	ISO Parameter	Specification
1	C	Insert Shape	80° Rhombic (Diamond)
2	N	Clearance Angle	0° (Negative Insert)
3	M	Tolerance Class	±0.05 mm (I.C.) / ±0.08 mm (Thickness)
4	G	Fixing & Chipbreaker Type	Single-Sided Negative with Hole
5–6	12	Inscribed Circle Diameter	12.7 mm (1/2")
7–8	04	Insert Thickness	4.76 mm (3/16")
9–10	08	Corner Radius	0.8 mm
11+	XP	Chipbreaker Code	Medium to Roughing

Engineering Dimensions & Geometry

Dimension	Metric	Imperial	Notes
Inscribed Circle (d)	12.7 mm	1/2"	ISO 1832 standard measurement
Thickness (s)	4.76 mm	3/16"	Determines depth of cut capacity
Corner Radius (r)	0.8 mm	0.8 mm	Directly influences surface finish and edge strength
Clearance Angle	0°	—	Negative geometry for high rigidity and economy
Chipbreaker Rake	Positive	—	Optimized for chip curl and controlled breakage
Inscribed Circle Tolerance	±0.05 mm	±0.002"	Ensures consistent seat contact in toolholder

Grade Details – Key Grade Characteristics

The CA125P grade is a premium PVD-coated carbide developed by Kyocera for universal steel and stainless steel machining. It combines an ultra-fine grain tungsten carbide substrate with a multi-layer PVD coating (TiAlN + TiN) to achieve an optimal balance of wear resistance, thermal stability, and edge toughness.

Substrate: Ultra-fine grain WC-Co (0.8 μm grain size) for high hardness and edge stability
Coating: Multi-layer PVD (TiAlN base + TiN top layer), copper-bronze appearance
Coating Hardness: ~3,200 HV (Vickers)
Coating Thickness: 2.5 – 3.5 μm
Hardness (HRA): 92.5 ± 0.5
Transverse Rupture Strength: >3,500 N/mm²
Thermal Stability: Effective up to 900°C (1,652°F)
Oxidation Resistance: Excellent up to 800°C
Friction Coefficient: Low (0.35 – 0.45 against steel)
Recommended Coolant: Wet or dry (MQL compatible)

Grade Comparison Matrix

Grade	Coating	ISO Range	Primary Use	Finish	Toughness
CA125P	PVD Multi-Layer	P15-P35 / M15-M25 / K15-K25	Universal / General Purpose	★★★★☆	★★★★☆
CA115P	PVD Thin Layer	P05-P25 / M10-M20	Finishing Specialist	★★★★★	★★★☆☆
CA135P	PVD Thick Layer	P25-P45 / M20-M35	Heavy Roughing	★★★☆☆	★★★★★
CA025P	Cermet	P05-P20 / K05-K20	High-Speed Finishing	★★★★★	★★☆☆☆

Chipbreaker Profile

The XP chipbreaker on the CNMG120408XP is engineered for medium to roughing. Its macro- and micro-geometry has been optimized through finite element analysis (FEA) and extensive field testing to provide stable chip formation across the recommended feed and depth-of-cut envelope.

Parameter	Value / Characteristic
Chipbreaker Code	XP
Rake Angle	Positive
Land Width	0.10 – 0.25 mm (varies by insert size)
Groove Depth	0.15 – 0.35 mm
Chip Curl Radius	Optimized for controlled breakage into C-shaped segments
Target Chip Shape	6–9 mm arc length, manageable for chip conveyor systems
Primary Application	General Purpose, Medium Roughing

Recommended Applications & Workpiece Materials

The CA125P grade combined with the XP geometry makes the CNMG120408XP highly versatile across ferrous and non-ferrous workpiece materials. The following table summarizes recommended material groups and corresponding machining strategies:

Material Group	ISO Code	Hardness	Machinability	Recommended Strategy
Carbon Steel & Alloy Steel	P.1 – P.4	< 350 HB	★★★★★	High-speed continuous cutting, wet or dry
Stainless Steel (Austenitic)	M.1 – M.2	< 280 HB	★★★★☆	Stable feed rates; avoid work-hardening by maintaining consistent DOC
Stainless Steel (Martensitic)	M.3 – M.4	< 320 HB	★★★☆☆	Reduce speed 15–20%; use ample coolant
Cast Iron (Gray)	K.1 – K.2	< 260 HB	★★★★☆	Dry machining preferred; excellent for high-speed finishing
Cast Iron (Ductile)	K.3 – K.4	< 300 HB	★★★☆☆	Moderate speeds; continuous cuts recommended
Tool Steel & Hardened Steel	P.5 – P.6	350 – 450 HB	★★☆☆☆	Reduce speed 30%; use rigid setup and flood coolant

Application Map by Operation

Operation	Suitability	Depth of Cut	Notes
General Turning	★★★★★	1.0 – 4.0 mm	Versatile OD turning across multiple passes
Medium Roughing	★★★★☆	2.0 – 6.0 mm	Efficient stock removal with stable chip control
Facing	★★★★☆	1.0 – 4.0 mm	Face milling and end-face turning operations
Profiling	★★★☆☆	1.0 – 3.0 mm	Moderate contouring with good surface finish

Recommended Cutting Conditions

Parameters below are starting recommendations for stable CNC turning centers with rigid workholding. Adjust based on machine power, part rigidity, and coolant delivery.

Workpiece Material	Cutting Speed Vc (m/min)	Feed fn (mm/rev)	Depth of Cut ap (mm)	Coolant
Carbon Steel (P.1–P.3)	204 – 304	0.15 – 0.35	1.0 – 6.0 mm	Wet / MQL
Alloy Steel (P.4–P.5)	173 – 258	0.15 – 0.35	1.0 – 6.0 mm	Wet (high pressure preferred)
Stainless Steel (M.1–M.2)	132 – 192	0.12 – 0.30	1.0 – 6.0 mm	Wet (copious flow)
Gray Cast Iron (K.1–K.2)	162 – 232	0.15 – 0.35	1.0 – 6.0 mm	Dry / Wet

Operating Guidelines

Tool Overhang: Minimize overhang to ≤ 1.5× toolholder height to prevent chatter and premature edge chipping.
Insert Seating: Ensure the toolholder pocket is clean and free of chip debris before seating. Use a plastic seating tool or soft mallet—never hammer carbide directly.
Coolant Delivery: For wet cutting, direct coolant nozzle at the cutting zone with 10–15 bar pressure for effective chip flushing and thermal management.
Entry Strategy: Use radial entry (not plunge) when beginning a cut to reduce impact loading on the corner radius.
Speed Ramp: On new installations, start at 80% of recommended Vc and increase gradually while monitoring tool wear and surface finish.
Wear Monitoring: Inspect flank wear (VB) every 15–20 minutes. Retire insert when VB exceeds 0.3 mm or when crater wear approaches the cutting edge.
Workpiece Runout: Maintain runout < 0.02 mm TIR for finishing operations and < 0.05 mm TIR for roughing.
Chip Control: If chips are stringy or bird-nesting, increase feed by 10–15% or verify coolant concentration.

Toolholder Compatibility

Compatible with standard 80° rhombic (C-type) negative toolholders. Verify insert thickness and inscribed circle diameter when selecting toolholder size.

Toolholder Style	Operation	Approach Angle	Clamping
MCLNR/L 2020K12	External Turning / Facing	95° Approach	Clamp + Pin
MCKNR/L 2525M12	External Turning / Profiling	75° Approach	Clamp + Pin
MCMNN 2020K12	External Roughing	0° Approach	Top Clamp
MCGNR/L 3232P16	Heavy Duty External	95° Approach	Rigid Clamp

Packaging & Ordering Information

Parameter	Details
Manufacturer Part Number (MPN)	TMK00119
Standard Pack Quantity	10 inserts per plastic pocket pack
Bulk Pack Quantity	50 inserts per sealed industrial carton
Individual Packaging	Each insert in protective plastic pocket to prevent edge damage
Label Information	Grade, ISO code, batch number, manufacturing date, and QR traceability code
Storage Recommendation	Store in original packaging at 15–25°C, humidity < 60% RH, away from corrosive vapors
Shelf Life	Indefinite when stored properly; inspect coating integrity after 3+ years
Unit Price (Reference)	USD 7.00 per insert (subject to volume discounts and currency fluctuation)

Catalog Meta Data

Attribute	Value
Product Family	CNMG Series – Negative Indexable Inserts
Grade Family	CA Series – PVD Coated Carbide
ISO Application Range	P15-P35 / M15-M25 / K15-K25
Insert Standard	ISO 1832:2017
Coating Standard	ISO 513:2014 (Hardmetals Classification)
Quality Certification	ISO 9001:2015 (Manufacturing) / ISO 14001:2015 (Environmental)
Country of Manufacture	Japan
RoHS Compliance	Yes – Directive 2011/65/EU compliant
REACH Compliance	Yes – SVHC free as per EC 1907/2006
ECCN Classification	1A002 (Standard industrial cutting tools)
HS Code	8209.00.00 (Carbide indexable inserts)
Last Catalog Update	2026-Q2

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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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Tags: CNMG120408XP , CA125P , 80-degree-rhombic , V-insert , Kyocera , TMK00119 , turning-insert , CNC-tool , universal-grade , chipbreaker-XP

Kyocera CNMG120408XP CA125P TMK00119 Turning Insert - General Purpose

International Shipping Note

Product Overview

ISO Designation Breakdown

Engineering Dimensions & Geometry

Grade Details – Key Grade Characteristics

Grade Comparison Matrix

Chipbreaker Profile

Recommended Applications & Workpiece Materials

Application Map by Operation

Recommended Cutting Conditions

Operating Guidelines

Toolholder Compatibility

Packaging & Ordering Information

Catalog Meta Data

Shipping & Stock Information │ 発送・在庫情報

Product Images & Technical Accuracy │ 正確な製品情報

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

Payments & Security │ 安全な決済方法

Fast & Reliable Worldwide Shipping │ 国際スピード郵便

Direct Supply Chain Transparency サプライチェーンの透明性

Domestic Sourced

100% Genuine

No Regional Markups

Information

My Account Information

Customer Service