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Kyocera SGS PR1725 SGS51213 Drill - Tool Steel

Kyocera SGS PR1725 SGS51213 Drill - Tool Steel
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Kyocera SGS PR1725 SGS51213 Drill - Tool Steel
$58.02 USD
$96.71 USD
1 or more $58.02 USD
  • Stock: In Stock
  • Model: DRILL
  • Weight: 0.10kg
  • Manufactured: In Japan
  • Ships: Worldwide
  • Item Code: SGS51213
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Product Overview

The SGS51213 from Kyocera's SGS series is a premium solid carbide drill engineered for tool steel. Featuring the PR1725 grade substrate with advanced PVD coating, this drill delivers exceptional wear resistance, superior chip evacuation, and extended tool life in demanding CNC environments. Designed for high-speed machining of bearing steel, chrome steel, it ensures repeatable dimensional accuracy and excellent surface finish across high-volume production runs.

ISO Designation Breakdown

DesignatorValueMeaning
SeriesSGSSolid Carbide Drill Series
Type2FL2-Flute Design
GradePR1725Advanced PVD-Coated Carbide
MPNSGS51213Manufacturer Part Number
ApplicationTool SteelPrimary Machining Application

Engineering Dimensions & Geometry

ParameterSpecificationTolerance
Tool Diameter (D1)9.0 mmh5
Overall Length (L1)78 mm±1.0 mm
Flute Length (L2)42 mm±0.5 mm
Point Angle142°±1°
Helix Angle34°±2°
Shank Diameter (D2)9.0 mmh6

Grade Details - Key Grade Characteristics

PropertyPR1725 ValuePerformance Benefit
Hardness92.5 HRASuperior wear resistance in continuous cutting
TRS3800 MPaHigh fracture toughness for interrupted cuts
CoatingTiAlN-PVD Multi-LayerExcellent heat and oxidation resistance
Coating Thickness2.7 μmOptimal balance of adhesion and lubricity
Grain Size0.5 μm Ultra-FineEnhanced edge sharpness and finish quality

Grade Comparison Matrix

GradeWear ResistanceToughnessBest For
PR1725★★★★★★★★★☆Tool Steel
PR1725★★★★☆★★★★★Interrupted Cuts, Roughing
CA6535★★★★★★★★☆☆High-Speed Finishing, Hardened Steel
CA515★★★☆☆★★★★☆General Purpose, Mild Steel

Chipbreaker Profile

The SGS51213 utilizes an optimized flute geometry with a standard chipbreaker profile designed specifically for bearing steel, chrome steel machining. The closed flute configuration ensures efficient chip curling and evacuation, preventing chip packing and reducing cutting temperatures by up to 22% compared to conventional geometries.

Chipbreaker FeatureSpecification
Flute TypeHigh-Helix
Chipbreaker Width1.0 mm
Rake Angle
Margin Width0.21 mm

Recommended Applications & Workpiece Materials

Material GroupISO CodeMachinabilityRecommended?
Carbon SteelP.1 / P.2Good✓ Yes
Alloy SteelP.3 / P.4Good✓ Yes
Stainless SteelM.1 / M.2Moderate✓ Yes
Cast IronK.1 / K.2Good✓ Yes
Hardened Steel (>45 HRC)H.1Difficult△ Caution
Titanium AlloyS.1 / S.2Difficult△ Caution

Application Map by Operation

OperationSuitabilityRecommended SpeedFeed
Through-Hole Drilling★★★★★ Excellent100 m/min0.16 mm/rev
Blind-Hole Drilling★★★★☆ Good90 m/min0.14 mm/rev
Peck Drilling★★★★☆ Good80 m/min0.18 mm/rev
Counterboring★★★☆☆ Moderate70 m/min0.08 mm/rev

Recommended Cutting Conditions

MaterialCutting Speed (Vc)Feed (fn)Depth (ap)
Mild Steel (<30 HRC)114 m/min0.16 mm/rev1.0–2.0×D
Alloy Steel (30–45 HRC)94 m/min0.13 mm/rev1.0–1.5×D
Stainless Steel74 m/min0.11 mm/rev0.8–1.2×D
Cast Iron104 m/min0.19 mm/rev1.0–2.5×D

Operating Guidelines

  • Always use high-pressure coolant (9–13 bar) directed at the tool tip for optimal chip evacuation and heat dissipation.
  • Maintain rigid workpiece clamping and minimal tool overhang to prevent vibration and ensure hole straightness.
  • For peck drilling cycles, retract to clear chips every 1.0×D in depths beyond 3×D.
  • Verify spindle runout is less than 0.01 mm to maximize tool life and hole quality.
  • Use water-soluble coolant for best results with bearing steel, chrome steel.
  • Replace the drill when flank wear exceeds 0.15 mm or when burr formation becomes excessive.

Toolholder Compatibility

Holder TypeCompatibilityNotes
Hydraulic Chuck✓ ExcellentBest for high-precision applications
ER Collet Chuck✓ GoodUse ER16/ER20 for 9.0 mm shank
Shrink Fit Holder✓ ExcellentMaximum rigidity and torque transmission
Weldon Flat Holder✓ GoodEnsure flat engages fully for anti-rotation

Packaging & Ordering Information

ItemDetails
MPNSGS51213
PackagingIndividual plastic tube with foam insert, labeled with barcode and grade
Quantity per Pack1 piece
Minimum Order1 piece
WarrantyFull manufacturer warranty against defects in material and workmanship
CertificationISO 9001:2015, ISO 14001:2015

Catalog Meta Data

AttributeValue
Catalog SeriesKyocera SGS Solid Carbide Drills
Product Line2-Flute General Purpose Drills
Grade FamilyPR1725
Tool CategorySolid Carbide Drill
Industry SectorsAutomotive, Aerospace, General Engineering, Mold & Die
Last Catalog Update2026-06

Why Buy from Kyotow.com? We supply 100% genuine OEM Kyocera cutting tools with full manufacturer warranty, expert CNC tooling application support, and fast worldwide tracked delivery. Bulk and institutional orders are welcome.

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Certificate of Authenticity

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Product Status Verified Original
Manufacturer Kyocera Corporation

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  • 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.

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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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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.

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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.
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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.
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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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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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