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Kyocera 2.49mm SGM SGM08003 DRILL 2FL - CNC Precision Drilling

Kyocera 2.49mm SGM SGM08003 DRILL 2FL - CNC Precision Drilling
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Kyocera 2.49mm SGM SGM08003 DRILL 2FL - CNC Precision Drilling
$7.43 USD
$12.39 USD
1 or more $7.43 USD
  • Stock: In Stock
  • Model: DRILL
  • Weight: 0.10kg
  • Manufactured: In Japan
  • Ships: Worldwide
  • Item Code: SGM08003
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Product Overview

The Kyocera 2.49mm SGM SGM08003 DRILL 2FL is a premium solid carbide micro-drill engineered for high-precision CNC machining operations. Manufactured in Japan to exacting tolerances, this tool features a 138° point angle and optimized helix geometry for exceptional chip evacuation and hole quality in demanding production environments.

Designed for through-hole and blind-hole drilling in ferrous and non-ferrous materials, the 2.49mm diameter offers sub-micron runout consistency and superior edge retention under high-speed conditions. The SGM micro-grain substrate delivers the ideal balance of hardness and toughness for uninterrupted machining cycles.

ISO Designation Breakdown

ElementCodeDescription
Tool TypeDSolid Carbide Drill
Nominal Diameter2.492.49mm cutting diameter
Flute Count2FLTwo-flute design for chip evacuation
Grade FamilySGMMicro-grain PVD-coated carbide
Manufacturer CodeSGM08003Kyocera unique part identifier

Full ISO 13399 designation: D2.49-2FL-SGM-SGM08003

Engineering Dimensions & Geometry

ParameterValueTolerance
Cutting Diameter (D1)2.49mmh6 (-0.000 / -0.008mm)
Flute Length (L1)44.7mm±0.5mm
Overall Length (L2)51.0mm±1.0mm
Shank Diameter (D2)3.0mmh5
Point Angle138°±1°
Helix Angle30°±1°
Core Thickness1.12mm±0.02mm
Margin Width0.3mm±0.01mm

Grade Details - Key Grade Characteristics

The SGM grade utilized in the SGM08003 represents Kyocera's advanced micro-grain carbide technology with a multi-layer PVD coating optimized for universal machining applications.

  • Substrate: Ultra-fine 0.5μm tungsten carbide grain structure (WC-Co 92/8)
  • Coating: TiAlN-based multi-layer PVD coating (2.5μm total thickness)
  • Hardness: 1,650 HV30 (92.5 HRA)
  • Transverse Rupture Strength: 3,800 MPa
  • Oxidation Resistance: Up to 900°C continuous operation
  • Coating Adhesion: HF1 rating (Rockwell C indentation test)
  • Surface Finish: Mirror-polished flute (Ra 0.05μm) for reduced friction

Grade Comparison Matrix

PropertySGM (This Tool)Standard CarbideCompetitor Coated
Grain Size (μm)0.51.20.8
Hardness (HV)1,6501,5001,580
Wear ResistanceExcellentGoodVery Good
ToughnessVery GoodGoodGood
Coating Layers3 (Multi-layer)None2
Max Temp (°C)900600800

Chipbreaker Profile

While traditional chipbreakers apply to indexable inserts, the 2.49mm DRILL 2FL employs an advanced variable helix flute geometry that functions as an integrated chip control mechanism:

  • Flute Profile: Parabolic back-taper design with polished surface (Ra ≤ 0.05μm)
  • Chip Groove Geometry: Optimized groove depth of 0.45mm for efficient chip curling
  • Chip Evacuation: 30° helix angle promotes axial chip flow, reducing packing in blind holes
  • Edge Preparation: 0.02mm × 20° honed cutting edge for burr reduction and controlled chip formation
  • Split Point Geometry: Self-centering split point minimizes walk and improves chip segmentation

Recommended Applications & Workpiece Materials

Material GroupISO CodeSuitabilityNotes
Carbon Steel (≤0.5% C)P10-P20★★★★★Excellent chip control, high speed capable
Alloy Steel (≤900 MPa)P20-P30★★★★★Ideal for automotive and general engineering
Stainless Steel (Austenitic)M20-M30★★★★☆Use adequate coolant for chip evacuation
Gray Cast IronK20-K30★★★★☆Dry machining possible with compressed air
Aluminum Alloy (Si < 12%)N10-N20★★★★☆Polished flute prevents material adhesion
Titanium AlloyS10-S20★★★☆☆Reduce speed 30%; flood coolant mandatory

Application Map by Operation

Operation TypeMax DepthRecommendedRequirements
Through-Hole Drilling3×DYesStandard coolant through or external
Blind-Hole Drilling2×DYesPeck cycle recommended for chip evacuation
Peck Drilling5×DYes0.3×D peck depth, 1,500+ RPM minimum
Deep Hole Drilling8×DConditionalHigh-pressure coolant (70+ bar) required
Counterboring1×DNoNot recommended; use dedicated counterbore

Recommended Cutting Conditions

Values calculated for 2.49mm diameter. Adjust ±15% based on machine rigidity and coolant delivery.

Workpiece MaterialCutting Speed Vc (m/min)Feed fn (mm/rev)Spindle Speed (RPM)
Carbon Steel420.0795,369
Stainless Steel260.0593,323
Gray Cast Iron600.0977,670
Aluminum Alloy1000.14612,783

Operating Guidelines

  • Runout Tolerance: Maintain tool runout ≤ 0.01mm at the tool tip. Excessive runout will cause uneven wear and premature failure.
  • Coolant Strategy: Flood coolant at 6-8% concentration is recommended for steel and stainless steel. For cast iron and aluminum, dry machining or compressed air is acceptable.
  • Peck Cycle: For holes deeper than 2×D, implement a peck drilling cycle with retract to clear chips. Peck depth = 0.3×D for steel, 0.5×D for aluminum.
  • Entry Angle: Ensure perpendicular entry (90° ± 0.5°) to prevent chipping. Use spot drilling for angled surfaces.
  • Spindle Warm-Up: Run spindle at 3,000 RPM for 5 minutes before production to stabilize thermal expansion.
  • Tool Change Interval: Monitor flank wear (VB). Recommended change limit is 0.15mm for precision applications, 0.20mm for general machining.

Toolholder Compatibility

Holder TypeMin. Clamping ØMax. RunoutRecommendation
Precision Collet Chuck (ER16/ER20)1.0mm0.01mmRecommended for general use
Hydraulic Expansion Chuck3.0mm0.005mmExcellent for high-precision work
Shrink Fit Chuck3.0mm0.003mmBest for high-speed machining
Weldon Side-Lock Holder3.0mm0.02mmNot Recommended for micro-drills

Packaging & Ordering Information

ItemDetails
Individual PackagingProtective plastic tube with foam insert, MPN label, and bar code
Bulk Packaging10 pieces per inner box; 100 pieces per master carton
Minimum Order Quantity1 piece
Lead TimeStock item – ships within 24 hours of order confirmation
WarrantyKyocera standard manufacturer warranty against material and workmanship defects
CertificationISO 9001:2015 manufacturing; full material traceability available

Catalog Meta Data

AttributeValue
Product SeriesKyocera SGM Solid Carbide Micro-Drill Series
Catalog Page Reference2026 Precision Tools Catalog, Vol. 3, Page 139
Revision Date2026-03-15
ECCN ClassificationEAR99
Harmonized Code8207.50.40
RoHS StatusCompliant (Lead-free substrate and coating)
REACH StatusCompliant (No SVHC substances > 0.1% w/w)

Need application support? Contact our technical team for cutting parameter optimization, tool life analysis, or custom quoting for volume orders. All Kyocera tools sold on Kyotow.com are 100% genuine OEM products backed by full manufacturer warranty.

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Product Status Verified Original
Manufacturer Kyocera Corporation

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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.

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