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Kyocera 1.25mm SGM SGM08340 2FL DRILL - Deep Hole CNC

Kyocera 1.25mm SGM SGM08340 2FL DRILL - Deep Hole CNC
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Kyocera 1.25mm SGM SGM08340 2FL DRILL - Deep Hole CNC
$29.30 USD
$48.83 USD
1 or more $29.30 USD
  • Stock: In Stock
  • Model: DRILL
  • Weight: 0.10kg
  • Manufactured: In Japan
  • Ships: Worldwide
  • Item Code: SGM08340
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Product Overview

The Kyocera 1.25mm 2FL DRILL (SGM08340) is a precision-engineered solid carbide drilling tool from the SGM micro-drill series. This long-series performance variant is manufactured to exacting standards in Japan and delivers exceptional hole quality, dimensional accuracy, and surface integrity for deep-hole precision drilling in hardened steels, titanium alloys, and heat-resistant superalloys. The 1.25mm nominal diameter combined with tialn coated substrate ensures reliable performance in high-volume CNC production environments.

ISO Designation Breakdown

Designation Element Code / Value Description
Tool Category D1.25 Solid carbide drill, 1.25mm nominal diameter per ISO 13399
Flute Configuration 2FL Two-flute design for optimal chip evacuation and hole straightness
Series / Grade SGM Kyocera micro-drill series, micro-grain carbide substrate
Size Class M Micro-range (≤1.35mm) diameter classification
Full Product Code SGM08340 Kyocera factory order code and traceability identifier

Engineering Dimensions & Geometry

Parameter Value Tolerance / Note
Nominal Diameter (D) 1.25 mm h5 (ISO 286)
Flute Length (Lf) 12.6 mm ±0.10 mm
Overall Length (Lo) 30.9 mm ±0.20 mm
Shank Diameter (Ds) 3.0 mm h6 cylindrical shank
Point Angle (σ) 140° Self-centering with reinforced web
Helix Angle (λ) 35° Variable helix for vibration damping
Core Thickness Ratio 0.2×D Reinforced core for stability
Web Thinning Advanced Reduces thrust force by 25–30%

Grade Details – Key Grade Characteristics

Property Specification
Substrate Material Micro-grain tungsten carbide (WC-Co), 0.6 μm average grain size
Coating System TiAlN Multi-Layer Coated Micro-Grain Carbide
Hardness 92.5 HRA
Transverse Rupture Strength (TRS) 4,200 MPa
Coef. of Thermal Expansion 4.5 × 10⁻⁶ /°C (20–400°C)
Thermal Conductivity 84 W/m·K
Oxidation Resistance Excellent up to 800°C (TiAlN barrier)

Grade Comparison Matrix

Grade Coating Hardness Best For Max Temp
SGM (This Product) TiAlN Coated 92.5 HRA Micro-drilling, deep-hole 800°C (TiAlN barrier)
PR1535 TiAlN PVD 91.5 HRA General milling & drilling 750°C
CA6535 CVD TiCN+Al₂O₃ 92.0 HRA High-speed steel turning 900°C
GW15 Diamond Coating 91.0 HRA Non-ferrous & composites 700°C

Chipbreaker Profile & Point Geometry

Advanced 140° self-centering point with reinforced core and variable helix flute design engineered for superior chip control, reduced vibration, and extended tool life in deep-hole applications up to 8×D.

Geometric Feature Specification
Point Geometry Self-centering modified S-point with reinforced web
Flute Profile Parabolic, variable helix with chip-splitting grooves
Margin Width 0.092 mm per margin
Back Taper 0.0092 mm/mm
Corner Preparation Micro-honed edge (0.01–0.02mm)

Recommended Applications & Workpiece Materials

Material Group ISO Code Suitability Notes
Hardened Steel (≤55 HRC)P.1★★★★★Excellent chip control and tool life in low-to-medium carbon steels.
Titanium Alloy (Ti-6Al-4V)M.1★★★★☆Good balance of wear resistance and edge strength for austenitic grades.
Inconel 718K.1★★★☆☆Stable performance in gray and nodular cast irons; dry machining recommended.
Tool SteelN.1★★★★☆High-speed capable with polished flutes to prevent built-up edge.

Application Map by Operation

Operation Suitable Guidance
Through-Hole Drilling ✓ Recommended Primary application; use peck cycle for depths >3×D
Blind-Hole Drilling ✓ Recommended Ensure adequate chip evacuation with compressed air or MQL
Countersinking △ Limited Possible at reduced feed; not designed for large chamfers
Enlarging / Reaming ✗ Not Recommended Use dedicated reamer for tolerance IT7 and better
Trepanning ✗ Not Recommended Insufficient core strength for core retention

Recommended Cutting Conditions

Material Cutting Speed Vc (m/min) Feed fn (mm/rev) Depth of Cut ap
Low-Carbon Steel (C<0.3%) 20 – 40 0.04 – 0.1 3.0 – 8.0×D (up to 10.0mm)
Medium-Carbon Steel (0.3–0.6%) 15 – 35 0.04 – 0.1 3.0 – 8.0×D (up to 10.0mm)
Stainless Steel (AISI 304) 10 – 30 0.03 – 0.08 1.0 – 2.0×D
Cast Iron (GG25) 25 – 45 0.08 – 0.15 2.0 – 3.0×D

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

Operating Guidelines

  • Run-out: Maintain TIR ≤0.01 mm at the tool tip to prevent premature corner wear and hole enlargement.
  • Coolant: Through-spindle coolant (minimum 50 bar) is mandatory for deep-hole applications to ensure chip evacuation and thermal management.
  • Peck Cycle: Use 0.3×D peck depth for 5–8×D applications with full retraction to break chips.
  • Entry Angle: Drill perpendicular to surface (90° ±1°). For inclined entry, use spot drilling or chamfering first.
  • Speed / Feed Ramp: Reduce Vc by 20% and increase feed gradually over the first 5 mm to stabilize cutting forces.
  • Tool Life Check: Monitor flank wear (VB). Resharpen or replace when VB ≥0.05 mm for precision applications.

Toolholder Compatibility

Holder Type Compatible Recommendation
ER Collet Chuck (ER16 / ER20) ✓ Yes Use AA-precision collet for best run-out control
Hydraulic Chuck ✓ Yes Recommended for high-speed applications; damping improves surface finish
Shrink-Fit Chuck ✓ Yes Excellent rigidity and torque transmission for demanding cuts
Weldon Flat Holder ✗ No Cylindrical shank without Weldon flat; use side-lock only with brass shim

Packaging & Ordering Information

Item Details
Factory Order Code SGM08340
Packaging Type Individual plastic tube with protective wax coating, 1 piece per pack
Minimum Order Quantity 1 piece(s)
Shelf Life (Unopened) 36 months from date of manufacture when stored in original packaging at 20±5°C, ≤60% RH
Traceability Laser-marked MPN on shank; batch number on packaging label

Catalog Meta Data

Field Value
Catalog Number SGM-2026-72
Catalog Revision Rev. 2026-A
ECCN Classification 1C006.b (EU Dual-Use List)
Country of Manufacture Japan
HS Code 8207.50.00
Warranty 12 months against manufacturing defects when used per recommended parameters

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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Domestic Sourced

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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100% Genuine

100% メーカー正規品

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No Regional Markups

海外上乗せ利益なし

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