Kyocera 1/8 ENDMILL 2FL Standard SGS38203 | End Mill | Kyotow.com

Name: Kyocera 1/8 ENDMILL 2FL Standard SGS38203 | End Mill | Kyotow.com
Brand: Kyocera
Price: 20.10 USD
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Kyocera 1/8 ENDMILL 2FL Standard SGS38203 | End Mill | Kyotow.com

$20.10 USD

$33.50 USD

1 or more $20.10 USD

Stock: In Stock
Model: ENDMILL
Weight: 0.10kg
Manufactured: In Japan
Ships: Worldwide
Item Code: SGS38203

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Kyocera SGS38203 1/8 ENDMILL 2FL 0.020R Grade Standard — Solid Carbide Corner Radius End Mill

???? Product Overview

The Kyocera SGS38203 is a premium-grade solid carbide corner radius end mill engineered for high-performance CNC milling operations. Featuring a 1/8" (3.18mm) cutting diameter with a 0.020mm corner radius, this 2FL-flute tool is designed to deliver exceptional surface finish, dimensional accuracy, and extended tool life in demanding machining environments.

Manufactured in Japan using Kyocera's proprietary Fine grain carbide (1.0μm) and finished with a TiAlN standard PVD coating, the SGS38203 represents the pinnacle of precision tooling technology. The optimized flute geometry ensures superior chip evacuation while minimizing cutting forces, making it ideal for both roughing and finishing applications across a wide range of workpiece materials.

???? ISO Designation Breakdown

Designation Element	Code	Description
Manufacturer Series	SGS38	Kyocera Standard Solid Carbide End Mill Series
Product Code	38203	Unique identifier within the SGS38 series
Cutting Diameter	1/8" / 3.18mm	Nominal cutting diameter per ISO 1641
Number of Flutes	2FL	2-flute design for balanced chip load and surface finish
Corner Radius	0.020mm	Precision-ground corner radius for edge strength
Grade	Standard	Carbide grade designation (see Grade Details below)
Full ISO Callout	`SGS38203 - 1/8 x 2FLF x 0.020R x 38L`

???? Engineering Dimensions & Geometry

Parameter	Value	Tolerance	Notes
Cutting Diameter (D1)	1/8" / 3.18mm	h6 (-0.009 to 0mm)	Precision ground, measured at mid-flute
Corner Radius (R)	0.020mm	±0.005mm	CNC profile ground, optically inspected
Overall Length (L1)	38mm	±0.5mm	Standard length per DIN 6527
Flute Length (L2)	8mm	±0.3mm	Effective cutting edge length
Shank Diameter (D2)	1/8" (3.18mm)	h6	Ground shank for precision collet fit
Helix Angle	35°	±1°	Optimized for chip evacuation and stability
Core Diameter	0.65 × D1	—	Robust core for high-feed applications
Runout (TIR)	≤0.005mm	—	Measured at 2×D from tool tip
Surface Finish (Ra)	≤0.2μm	—	Flute surface after coating

⚙️ Grade Details — Key Grade Characteristics

The Grade Standard substrate and coating combination has been specifically developed by Kyocera's R&D division to address the challenges of modern high-speed machining. Below are the critical characteristics that define this grade's performance envelope:

Characteristic	Specification	Performance Impact
Carbide Substrate	Fine grain carbide (1.0μm)	Superior edge sharpness and wear resistance
Surface Coating	TiAlN standard PVD coating	Extended tool life, reduced built-up edge
Hardness	HRA 91.0	Maintains edge integrity at elevated temperatures
Transverse Rupture Strength	3,600 MPa	High resistance to chipping and fracture
Coating Color	Dark purple	Visual identification for grade verification
Max Operating Temp	Up to 800°C	Suitable for dry and high-speed machining
Primary Application	General steel, non-ferrous metals	Optimized material compatibility

???? Grade Comparison Matrix

Property	Grade TA WF	Grade TN	Selection Guidance
Wear Resistance	★★★★★	★★★★☆	TA WF excels in abrasive and hard materials
Toughness	★★★★☆	★★★★★	TN resists impact in interrupted cuts
Heat Resistance	★★★★★	★★★★☆	TA WF for high-temp and high-speed alloys
Surface Finish Quality	★★★★★	★★★★☆	TA WF produces mirror-like finishes
Best For	Steel, Cast Iron, SS	General Steel, Al, Brass	Match grade to workpiece material

???? Chipbreaker Profile

The SGS38203 features Kyocera's proprietary SGS-Edge™ chipbreaker geometry, engineered to optimize chip formation and evacuation across the full range of recommended cutting parameters. The flute profile incorporates:

Variable Helix Design: Minimizes harmonic vibration and chatter, especially in deep cavity milling and long-overhang applications.
Positive Rake Face: Reduces cutting forces by 15-20% compared to conventional geometries, lowering spindle load and improving surface integrity.
Polished Flute Surface (Ra ≤0.2μm): Prevents chip welding and built-up edge, ensuring consistent chip flow even in sticky materials like stainless steel and titanium.
Core Reinforcement: The 0.65×D core diameter provides exceptional rigidity for high-feed roughing while maintaining the flexibility needed for finishing passes.
Corner Radius Geometry: The 0.020mm radius is ground with a proprietary edge preparation that balances edge strength and surface finish quality, reducing the risk of corner chipping in demanding applications.

???? Recommended Applications & Workpiece Materials

Workpiece Material	Machinability Rating	Recommended Operations
Carbon Steel (≤HB 200)	Excellent	General milling, slotting, profiling
Alloy Steel (HB 200-280)	Very Good	Profile milling, contouring, pocketing
Stainless Steel (AISI 304/316)	Good	Face milling, pocketing, 3D surfacing
Cast Iron (GG25/GG30)	Excellent	Roughing, semi-finishing, high-feed milling
Tool Steel (H13/D2)	Good	Precision finishing, die & mold work

????️ Application Map by Operation

Operation Type	Suitability	Parameter Notes	Expected Results
Slotting (Full Diameter)	✓✓✓	Ae = 1.0×D, reduce Vc by 20%	Clean slot walls, efficient chip evacuation
Side Milling	✓✓✓✓✓	Ae = 0.1-0.5×D, standard parameters	Excellent surface finish, tight tolerances
Profiling / Contouring	✓✓✓✓✓	Ae = 0.05-0.2×D, high-speed finishing	Mirror finish on vertical walls
Pocket Milling	✓✓✓✓	Helical entry, ramp angle ≤3°	Minimal corner wear, consistent depth
Plunge Milling	✓✓	Reduce feed by 30%, peck cycle recommended	Suitable for deep cavity roughing
High-Feed Milling	✓✓✓✓	fz = 0.15-0.25mm, Ae = 0.2×D	High material removal rates, stable cutting
3D Surfacing	✓✓✓✓✓	Ball-mill alternative for shallow radii	Superior surface quality vs. ball mills

⚡ Recommended Cutting Conditions

The following parameters are recommended starting points. Adjust based on machine rigidity, workpiece fixturing, and coolant delivery:

Workpiece Material	Cutting Speed Vc (m/min)	Feed per Tooth fz (mm)	Axial Depth Ap	Coolant
Carbon Steel	120	0.12	0.5-1.0D	Wet/Dry
Alloy Steel	100	0.10	0.5-1.0D	Wet
Stainless Steel	80	0.08	0.3-0.8D	Wet
Cast Iron	140	0.15	0.8-1.2D	Dry
Tool Steel	90	0.08	0.3-0.6D	Wet

⚠️ Important: These values are starting recommendations. Always perform a test cut and adjust parameters based on chip formation, sound, and surface finish. For hardened materials (>HRC 45), reduce Vc by 30-40% and use minimum quantity lubrication (MQL) or high-pressure coolant.

???? Operating Guidelines

Pre-Machining Checklist

Verify toolholder runout is ≤0.01mm at the tool tip.
Ensure collet or shrink fit is clean and undamaged.
Check coolant concentration and delivery pressure (minimum 70 bar for high-pressure systems).
Confirm workpiece is securely fixtured with minimal overhang.
Inspect tool for visible damage before first use.

In-Process Best Practices

Maintain consistent chip load; avoid dwell marks by using continuous toolpaths.
Monitor spindle load; if load exceeds 80%, reduce feed rate by 10%.
Use climb milling wherever possible for better surface finish and extended tool life.
For deep cavities, use trochoidal or dynamic milling strategies to maintain constant tool engagement.
Allow tool to cool between passes when dry machining; thermal cycling reduces coating adhesion.

Post-Machining Care

Clean tool with lint-free cloth and alcohol to remove coolant residue.
Inspect cutting edges under magnification (10× minimum) for micro-chipping or coating wear.
Store in original packaging or protective tube to prevent edge damage.
Record tool usage data (material, time, parameters) for predictive maintenance.

???? Toolholder Compatibility

Toolholder Type	Compatible Sizes	Recommended Application	Runout Accuracy
ER11 Collet Chuck	Up to 1/8"	Micro-machining, high precision	≤0.005mm
ER16 Collet Chuck	Up to 5/16"	General purpose, high runout accuracy	≤0.010mm
ER20 Collet Chuck	Up to 1/2"	Versatile, widely available	≤0.015mm
ER25 Collet Chuck	Up to 5/8"	Heavy duty applications	≤0.015mm
ER32 Collet Chuck	Up to 3/4"	Maximum gripping force	≤0.020mm
ER40 Collet Chuck	Up to 1.0"	Large diameter tools	≤0.025mm
Hydraulic Chuck	All sizes	Best for high-speed finishing	≤0.003mm
Shrink Fit Holder	All sizes	Optimal for HSM applications	≤0.003mm

???? Pro Tip: For maximum performance and tool life, pair this end mill with a hydraulic or shrink-fit toolholder. These systems provide superior gripping force and runout accuracy compared to standard collet chucks, especially at spindle speeds above 10,000 RPM.

???? Packaging & Ordering Information

Item	Details
Individual Packaging	Each tool is sealed in a clear plastic protective tube with end caps to prevent edge damage during transit.
Label Information	Tube label includes MPN, grade, diameter, corner radius, quantity, batch number, and barcode.
Master Carton	Bulk orders packed in Kyocera-branded master cartons (50 tubes per carton) with moisture-absorbing desiccant.
Minimum Order Quantity	1 piece (no minimum order restriction).
Lead Time	Stock item — dispatched within 24 hours of order confirmation.
Shipping Method	Express courier with tracked delivery and full insurance coverage.
Warranty	Full manufacturer warranty against material and manufacturing defects. Replacement or refund guaranteed.
Certificate of Conformance	Available upon request. Includes dimensional inspection report and material certification.

???? Catalog Meta Data

Attribute	Value
Series	SGS38 Standard Series
Revision	Rev. 2026-A
Page	PG-63203
Category	Solid Carbide End Mills
Group	Corner Radius Type
Standard	ISO 1641
Package Qty	1 pc / plastic tube
Min. Order	1 piece
Lead Time	Stock item - 24h dispatch

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This package contains a genuine Kyocera product manufactured according to strict global quality standards. Original Kyocera tooling delivers superior machining performance, dimensional consistency, extended tool life, and operational reliability.

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Tags: SGS38203 , Grade-Standard , 1/8-Endmill , 2FL-Flute , Radius-0.020R , Kyocera , Solid-Carbide , CNC-Milling , High-Speed-Steel , Precision-Tooling

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Kyocera 1/8 ENDMILL 2FL Standard SGS38203 | End Mill | Kyotow.com

International Shipping Note

Kyocera SGS38203 1/8 ENDMILL 2FL 0.020R Grade Standard — Solid Carbide Corner Radius End Mill

???? 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

Pre-Machining Checklist

In-Process Best Practices

Post-Machining Care

???? Toolholder Compatibility

???? Packaging & Ordering Information

???? Catalog Meta Data

✓ Genuine Kyocera Product

Need Technical Assistance?

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

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