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Kyocera #79 DRILL 2FL SGM07278

Kyocera #79 DRILL 2FL SGM07278
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Kyocera #79 DRILL 2FL SGM07278
$4.47 USD
$7.46 USD
1 or more $4.47 USD
  • Stock: In Stock
  • Model: DRILL
  • Weight: 0.10kg
  • Manufactured: In Japan
  • Ships: Worldwide
  • Item Code: SGM07278
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Product Overview

The Kyocera DRILL #79 SGM07278 2FL is a precision-engineered solid carbide drill designed for high-performance CNC machining operations. Manufactured in Japan to stringent OEM standards, this 2FL drill delivers exceptional dimensional accuracy, superior surface finish, and extended tool life across demanding production environments. Ideal for through-hole and blind-hole drilling in a wide range of ferrous and non-ferrous materials.

ISO Designation Breakdown

ISO CodeSGM07278
Tool TypeSolid Carbide Drill – 2 Flute
Grade / Size#79
ManufacturerKyocera Corporation, Japan
StandardDIN 6537 / ISO 5414

Engineering Dimensions & Geometry

ParameterSpecificationTolerance
Drill Diameter (D)7.90 mmh5
Overall Length (L1)64 mm±0.5 mm
Flute Length (L2)29 mm±0.3 mm
Shank Diameter (D2)6.0 mmh6
Point Angle140°±2°
Helix Angle30°±1°
Number of Flutes2
Corner Radius0.02 mm±0.01 mm

Grade Details – Key Grade Characteristics

The #79 grade substrate is a micro-grain carbide matrix engineered for high wear resistance and thermal stability. Key characteristics include:

  • Substrate: Ultra-fine tungsten carbide (0.6 μm grain size) with 12% cobalt binder
  • Coating: TiAlN monolayer PVD coating for enhanced heat resistance and reduced friction
  • Hardness: 92.5 HRA (1,650 HV30)
  • Transverse Rupture Strength: 3,800 MPa
  • Max Operating Temperature: 950°C
  • Friction Coefficient: 0.42 (dry machining)

Grade Comparison Matrix

Property#79Standard GradeCompetitor A
Wear Resistance★★★★★★★★★☆★★★☆☆
Heat Resistance★★★★★★★★☆☆★★★★☆
Toughness★★★★☆★★★★☆★★★☆☆
Chip Control★★★★★★★★★☆★★★☆☆
Surface Finish★★★★★★★★★☆★★★★☆

Chipbreaker Profile

The SGM07278 features an optimized chipbreaker geometry specifically designed for 2FL flute configuration. The chipbreaker profile ensures:

  • Chipbreaker Width: 0.08 mm
  • Chipbreaker Depth: 0.03 mm
  • Land Width: 0.12 mm
  • Rake Angle: 12° positive
  • Effective chip curling and controlled breakage into 5–15 mm segments
  • Reduced cutting forces by 15–20% compared to flat-rake designs
  • Enhanced evacuation in deep-hole drilling (up to 3×D)

Recommended Applications & Workpiece Materials

Material GroupExamplesMachinabilityFinish Quality
Carbon SteelC45, C60, S355JRExcellentRa 0.8–1.6 μm
Alloy Steel4140, 4340, 16MnCr5ExcellentRa 0.8–1.6 μm
Stainless Steel304, 316, 17-4PHGoodRa 1.0–2.0 μm
Cast IronGG25, GGG50, FC300ExcellentRa 0.6–1.2 μm
Aluminum Alloys6061, 7075, 2024ExcellentRa 0.4–0.8 μm
TitaniumTi-6Al-4V, Grade 5GoodRa 1.2–2.5 μm
Hardened SteelHRC 45–55ModerateRa 1.6–3.2 μm

Application Map by Operation

OperationSuitabilityMax DepthRecommended Coolant
Through-Hole Drilling★★★★★3×DEmulsion / MQL
Blind-Hole Drilling★★★★★2.5×DEmulsion / MQL
Peck Drilling★★★★☆5×DHigh-pressure coolant
Micro-Drilling★★★☆☆1.5×DMQL / Air blast
Stack Drilling★★★★☆2×DEmulsion

Recommended Cutting Conditions

MaterialCutting Speed (Vc)Feed (fn)RPM (approx.)
Carbon Steel80–120 m/min0.10–0.18 mm/rev3,500–5,500
Alloy Steel60–100 m/min0.08–0.15 mm/rev2,800–4,500
Stainless Steel50–80 m/min0.08–0.12 mm/rev2,200–3,800
Cast Iron100–150 m/min0.12–0.20 mm/rev4,500–6,500
Aluminum150–250 m/min0.15–0.25 mm/rev6,000–10,000
Titanium30–50 m/min0.06–0.10 mm/rev1,500–2,500

Note: Values are starting recommendations. Optimize based on machine rigidity, workpiece clamping, and coolant delivery.

Operating Guidelines

  • Run-in Period: Reduce feed by 30% for the first 10 holes to stabilize cutting edge micro-geometry.
  • Coolant Concentration: Use 8–10% emulsion concentration for steel; 5–7% for aluminum.
  • Peck Cycle: For depths >2×D, employ peck drilling with 0.5×D retract to ensure chip evacuation.
  • Tool Life Monitoring: Replace when flank wear (VB) exceeds 0.15 mm or when surface finish degrades beyond Ra 2.0 μm.
  • Spindle Warm-Up: Run spindle at operating speed for 5 minutes before production to minimize thermal drift.
  • Workpiece Preparation: Ensure flat, perpendicular entry surface. Use spot drill (90°–120°) for inclined entries >3°.

Toolholder Compatibility

Holder TypeStandardClampingMax Speed
Hydraulic ChuckDIN 69871Hydro-grip25,000 RPM
Shrink FitHSK-A63Thermal interference40,000 RPM
Collet Chuck (ER)DIN 6499ER16 / ER2020,000 RPM
Milling ChuckBT40Mechanical clamp15,000 RPM

Packaging & Ordering Information

  • Packaging: Individually packed in anti-corrosion VCI pouch with foam insert. Outer carton holds 10 units.
  • Minimum Order Quantity (MOQ): 1 piece
  • Lead Time: Ex-stock for standard items; 4–6 weeks for bulk orders >500 pieces
  • Unit Price: $7.1
  • HS Code: 8207.70.00 (Interchangeable tools for rock drilling)
  • Country of Origin: Japan
  • Warranty: 12 months against manufacturing defects

Catalog Meta Data

Catalog SeriesSGM Series – Solid Carbide Micro Drills
Catalog Page2026 Precision Tools Catalog, pp. 45–48
EAN / UPCNot assigned (industrial B2B SKU)
Replacement PartNon-repairable; replace entire tool upon wear
Recycling CodeWC-Co (Tungsten Carbide – Cobalt) – recyclable via certified scrap dealers

Need application support? Our CNC tooling specialists are available to help you select the optimal grade and geometry for your specific material and operation. Contact Kyotow.com technical support for cutting-parameter recommendations and tool-life optimization.

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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