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Kyocera D91 PR1535 CDR00783 Drill - CNC Precision

Kyocera D91 PR1535 CDR00783 Drill - CNC Precision
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Kyocera D91 PR1535 CDR00783 Drill - CNC Precision
$33.45 USD
$55.76 USD
1 or more $33.45 USD
  • Stock: In Stock
  • Model: DRILL
  • Weight: 0.10kg
  • Manufactured: In Japan
  • Ships: Worldwide
  • Item Code: CDR00783
This product has a minimum quantity of 10
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Product Overview

The D91 0630 Drill CDR00783 is a premium solid carbide drill manufactured by Kyocera. Designed for 6.30mm diameter precision drilling, this tool combines advanced substrate technology with optimized cutting geometry to deliver exceptional performance in CNC machining centers. Ideal for high-volume production environments requiring consistent hole quality and extended tool life.

ISO Designation Breakdown

Code ElementMeaningValue
DTool TypeSolid Carbide Drill
91Series DesignationHigh-Performance Drill Series
0630Diameter × 1006.30 mm
PR1535Carbide GradePVD Coated Micro-Grain

Engineering Dimensions & Geometry

ParameterSpecificationTolerance
Cutting Diameter (D1)6.30 mmh6 (0/-0.008)
Overall Length (L1)86 mm±1.0 mm
Flute Length (L2)23.9 mm±0.5 mm
Point Angle140°±2°
Helix Angle30°±1°
Shank Diameter6.30 mmh6

Grade Details - Key Grade Characteristics

PR1535 is a micro-grain carbide substrate with advanced PVD multi-layer coating engineered specifically for high-speed drilling applications:

  • Substrate: Ultra-fine tungsten carbide (0.6μm grain size)
  • Coating: TiAlN-based multi-layer PVD coating
  • Hardness: 91.8 HRA
  • Transverse Rupture Strength: 3,100 MPa
  • Coating Thickness: 2.5 ± 0.5 μm
  • Friction Coefficient: 0.35 (dry against steel)
  • Heat Resistance: Up to 900°C continuous operation

Grade Comparison Matrix

PropertyPR1535Standard UncoatedCompetitor A
Hardness (HRA)91.890.591.5
Tool Life (min)120+4585
Cutting Speed (m/min)80-12040-6060-90
Wear ResistanceExcellentFairGood

Chipbreaker Profile

The D91 series features an optimized flute design with variable helix geometry to ensure efficient chip evacuation:

  • Flute Profile: Parabolic flute for enhanced chip flow
  • Core Thickness: 35% of tool diameter for maximum rigidity
  • Margin Width: 0.15 mm per margin (dual margin design)
  • Web Thinning: Advanced web thinning for reduced thrust force
  • Chipbreaker Type: Natural parabolic chip formation (no additional breakers required)
  • Surface Finish: Mirror-polished flutes (Ra 0.1 μm) to prevent built-up edge

Recommended Applications & Workpiece Materials

Material GroupMachinabilityRecommended
Carbon Steel (C < 0.5%)★★★★★Ideal
Alloy Steel (HB 180-280)★★★★☆Excellent
Stainless Steel (Austenitic)★★★★☆Very Good
Cast Iron (Grey/Ductile)★★★☆☆Good
Titanium Alloys★★★☆☆Moderate

Application Map by Operation

Operation TypeSuitabilityNotes
Through-Hole DrillingPrimary ApplicationOptimal chip evacuation
Blind-Hole DrillingRecommendedPeck cycle recommended
Deep Hole Drilling (L/D > 5)ConditionalUse internal coolant
Micro-DrillingNot ApplicableDiameter exceeds micro range

Recommended Cutting Conditions

MaterialCutting Speed (Vc)Feed (fn)Coolant
Low-Carbon Steel100-120 m/min0.15-0.25 mm/revEmulsion / MQL
Medium-Carbon Steel80-100 m/min0.12-0.20 mm/revEmulsion
Stainless Steel 30460-80 m/min0.10-0.18 mm/revHigh-Pressure Emulsion
Alloy Steel 414070-90 m/min0.12-0.20 mm/revEmulsion / Oil

Operating Guidelines

  • Runout: Maintain TIR < 0.01 mm for optimal tool life and hole accuracy
  • Coolant: Minimum 3-5% emulsion concentration; high-pressure (70+ bar) recommended for deep holes
  • Peck Cycle: For depths > 3×D, use 1×D peck depth with full retract to break chips
  • Entry Angle: Use chamfer or center drill to prevent walk; 90° entry preferred
  • Speed Ramp: Reduce speed by 20% for first 10 holes to condition cutting edge
  • Tool Change: Monitor flank wear; replace when VBmax = 0.3 mm or when burr formation appears

Toolholder Compatibility

Holder TypeCompatibilityNotes
Hydraulic Chuck★★★★★Best damping, recommended
Shrink Fit★★★★★Excellent rigidity
ER Collet (ER25+)★★★★☆Ensure > 2/3 clamping length
Drill Chuck★★★☆☆Acceptable for short holes only

Packaging & Ordering Information

  • Packaging: Individual plastic tube with protective foam insert, 10 pcs per master carton
  • Minimum Order: 1 piece
  • Stock Status: Usually ships within 24-48 hours
  • MPN: CDR00783
  • Product ID: 6071
  • Warranty: Manufacturer's standard warranty against material defects

Catalog Meta Data

AttributeValue
Catalog SeriesD91 High-Performance Drills
Tool CategorySolid Carbide Twist Drill
ISO StandardISO 5414
Last Updated2026-01-07
Data Sheet RevisionRev. 2026-A

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

Zero counterfeit risk. All items are brand-new, authentic factory-sealed Japanese stock.

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No Regional Markups

海外上乗せ利益なし

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