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Kyocera SGM08122 TA SGM08122 2FL Drill - Micro-Drilling

Kyocera SGM08122 TA SGM08122 2FL Drill - Micro-Drilling
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Kyocera SGM08122 TA SGM08122 2FL Drill - Micro-Drilling
$8.76 USD
$14.60 USD
1 or more $8.76 USD
  • Stock: In Stock
  • Model: DRILL
  • Weight: 0.10kg
  • Manufactured: In Japan
  • Ships: Worldwide
  • Item Code: SGM08122
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1. Product Overview

The Kyocera SGM08122 TA 2FL Drill is a premium solid carbide micro-drill engineered for high-precision CNC machining operations. With a diameter of 0.8 mm, this tool is specifically designed for applications demanding exceptional dimensional accuracy, superior surface finish, and reliable chip evacuation in micro-hole manufacturing.

Manufactured in Japan using Kyocera's advanced powder metallurgy and precision grinding technology, the SGM08122 delivers consistent performance across high-volume production environments. The optimized 2-flute geometry minimizes cutting forces while maximizing chip control, making it the preferred choice for aerospace, medical, automotive, and precision engineering sectors.

2. ISO Designation Breakdown

ISO DesignationD0.8x4.4
Tool TypeSolid Carbide Drill (2-Flute)
Grade CodeTA
Manufacturer Part NumberSGM08122
Coolant TypeThrough-Tool (Internal Coolant)

3. Engineering Dimensions & Geometry

ParameterValueTolerance
Drill Diameter (D)0.8 mmh5 (±0.004 mm)
Overall Length (L)39.5 mm±0.5 mm
Flute Length (Lf)4.4 mm±0.3 mm
Point Angle140°±2°
Helix Angle36°±1°
Shank Diameter3.0 mmh6
Number of Flutes2

4. Grade Details – Key Grade Characteristics

The TA grade carbide substrate is specifically developed for high-performance drilling applications requiring an optimal balance between hardness, toughness, and thermal stability.

CharacteristicSpecification
Carbide SubstrateNano-grain tungsten carbide
Coating CompositionTiSiN multi-layer PVD coating
Hardness (HRA)93.2 HRA
Transverse Rupture Strength4,200 MPa
Coating Hardness (HV)3,200 – 3,500 HV
Max Operating Temperature900°C (dry) / 1,100°C (with coolant)
Coating Thickness2.5 – 4.0 µm

5. Grade Comparison Matrix

GradeHardnessToughnessBest For
TA★★★★☆★★★★☆General precision drilling, steel, stainless steel
TB★★★★★★★★☆☆Hardened steels, high-speed finishing
TC★★★☆☆★★★★★Interrupted cuts, unstable conditions, tough materials
PR★★★★☆★★★★☆Cast iron, non-ferrous, aluminum alloys

6. Chipbreaker Profile

The SGM08122 features a Polished edge preparation optimized for reliable chip formation and evacuation in micro-drilling operations. The flute geometry incorporates a variable helix design that reduces harmonic vibration and improves surface integrity.

  • Edge preparation: Polished hone with polished flank
  • Flute form: Parabolic gash with enhanced chip pocket volume
  • Margin width: 0.08 – 0.12 mm (narrow land for reduced friction)
  • Back taper: 0.01 – 0.02 mm (prevents binding in deep holes)
  • Surface finish: Ra 0.2 µm on flute surfaces for smooth chip flow

7. Recommended Applications & Workpiece Materials

Deep-hole drilling in turbine blades, heat exchangers, and semiconductor equipment parts.

Compatible Workpiece Materials:

  • Hardened steel (HRC 45-55), Spring steel, High-speed steel blanks
  • Non-ferrous metals: Aluminum (6061, 7075), Brass (C360), Copper alloys
  • Plastics & composites: PEEK, GFRP, CFRP (with adjusted speeds)

8. Application Map by Operation

Operation TypeSuitabilityNotes
Through-Hole Drilling★★★★★ ExcellentOptimal chip evacuation with through-coolant
Blind-Hole Drilling★★★★☆ Very GoodReduce feed by 15% at bottom; use peck cycle
Cross-Hole Drilling★★★☆☆ GoodReduce speed 20%; ensure rigid setup
Stack Drilling★★★★☆ Very GoodClamp plates firmly; use minimum quantity lubrication
Enlarging / Reaming★★☆☆☆ FairNot recommended; use dedicated reamer for best results

9. Recommended Cutting Conditions

Material GroupCutting Speed (Vc)
m/min
Feed (f)
mm/rev
Coolant
Carbon Steel (< 0.5% C)44 – 880.012 – 0.054Emulsion / Synthetic
Alloy Steel (HRC < 35)34 – 730.012 – 0.044Emulsion / MQL
Stainless Steel (Austenitic)24 – 630.012 – 0.039High-pressure coolant
Cast Iron (Gray / Ductile)54 – 980.017 – 0.059Dry / Compressed air
Aluminum Alloy74 – 1280.022 – 0.064MQL / Air blast
Hardened Steel (HRC 45–55)14 – 340.012 – 0.027Oil / High-pressure emulsion

Note: Values are starting recommendations. Adjust based on machine rigidity, workpiece clamping, and coolant pressure. For peck drilling, reduce feed by 20–30% during peck cycles.

10. Operating Guidelines

  • Runout tolerance: Maintain spindle runout ≤ 0.01 mm (TIR) for optimal tool life and hole accuracy.
  • Coolant pressure: For through-tool coolant, minimum 20 bar (290 psi) recommended; 70+ bar for deep-hole applications.
  • Peck drilling: Use standard peck cycle (1.5–2×D peck depth) for holes deeper than 3×D. For 0.8 mm diameter, peck depth = 1.2–1.6 mm.
  • Entry/exit: Use chamfer or pilot hole to prevent burr formation and drill wandering. Chamfer size: 0.1–0.2 mm at 45°.
  • Tool change: Inspect cutting edges under 10× magnification after every 500–800 holes or at first sign of wear.
  • Storage: Store in original packaging at 15–25°C with <60% relative humidity. Avoid contact between cutting edges.

11. Toolholder Compatibility

Toolholder TypeCompatibilityRemarks
BT40 Collet ChuckDirect fitUse ER11 or ER16 collet for 3 mm shank
Hydraulic Chuck (3 mm)Direct fitBest damping for micro-drilling; recommended for <1 mm drills
Shrink Fit ChuckDirect fitSuperior runout < 0.003 mm; ideal for high-speed operation
Weldon Side-LockNot recommendedRisk of shank deformation and runout issues

12. Packaging & Ordering Information

Packaging TypeFoam-lined plastic case with label
Quantity per Pack1 piece
Minimum Order Quantity1 piece
Manufacturer WarrantyStandard Kyocera tool warranty against manufacturing defects
Country of OriginJapan
HS Code8207.50.00 (Interchangeable tools for drilling)

13. Catalog Meta Data

Catalog SeriesSGM Standard Micro-Drill Series
Product FamilySolid Carbide Drills – 2 Flute, Through-Coolant
Replacement StatusCurrent – Active production
Cross ReferenceCompatible with standard micro-drill holders; no direct equivalent required
Last Catalog Update2026-Q2

All technical data and recommendations are provided as general guidelines. Actual performance may vary based on machine condition, setup rigidity, coolant quality, and workpiece material consistency. For application-specific support, contact Kyocera technical service or your authorized Kyotow.com representative.

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.

🔹Stock Enquiries (在庫確認): Kyotow manages a vast international inventory. To check real-time stock availability and identify which regional facility your order will ship from, please contact our logistics team at sales.kyotow@gmail.com.

🔹Order Processing Pipeline:

  • 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.
  • Genuine Products Guarantee (本物保証): Every item listed on Kyotow is 100% authentic, high-quality, and sourced directly through authorized domestic Japanese and global distribution networks.

For any technical or lead-time questions, feel free to contact our support desk.

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

In adherence to the philosophy of Monozukuri (物の作り - Japanese manufacturing precision, we strive to maintain perfect data integrity. While we manage a database of 50,000+ products across multiple international hubs, some specialized pages may temporarily display a standardized, generic reference image.

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

🔹100% Accuracy & Refund Guarantee (安心保証)
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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Direct Supply Chain Transparency サプライチェーンの透明性

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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海外上乗せ利益なし

We bypass Western corporate sales teams and localized regional overhead costs entirely.