Kyocera #21 CA6535 SGS55164 Carbide Drill - CNC Hole Machining

Name: Kyocera #21 CA6535 SGS55164 Carbide Drill - CNC Hole Machining
Brand: Kyocera
Price: 82.66 USD
Availability: InStock

-40 %

💳 We Accept PayPal & Secure Bank Payments

For your absolute peace of mind, all transactions are processed through and secured by PayPal. Your purchase is fully covered by PayPal Buyer Protection, ensuring secure data encryption and trusted dispute resolution.

安心の決済保護：すべてのお手続きはPayPalを介して安全に暗号化され、バイヤープロテクション（購入者保護）が適用されます。

100%

Satisfaction Guarantee

Kyocera Original Product

Paypal Secure Checkout

🚚

Fast & Secure Shipping

Kyocera #21 CA6535 SGS55164 Carbide Drill - CNC Hole Machining

$82.66 USD

$137.76 USD

1 or more $82.66 USD

Stock: In Stock
Model: DRILL
Weight: 0.10kg
Manufactured: In Japan
Ships: Worldwide
Item Code: SGS55164

Qty

✈️ Global Express Delivery

Flat $50 USD Shipping worldwide via DHL Express. Maximize your savings by ordering in bulk packs!

International Shipping Note

Please note that any local customs duties, taxes, or import fees are not included in the checkout price and must be borne by the customer.

How it works: Once your package arrives at your country's customs office, DHL will contact you directly via email, SMS, or phone to guide you through the local clearance and payment process.

Where should we send your order? *

DHL secure global delivery. Tracked from our door to yours. Kyotow.com Secured

Product Overview

The Kyocera #21 DRILL 3FL 5XD TM IC SGS55164 is a premium solid carbide drill engineered for high-performance deep-hole-making operations. Featuring the advanced CA6535 substrate with a multi-layer PVD coating, this drill delivers exceptional wear resistance, superior chip evacuation, and extended tool life in demanding production environments. The 3-flute design with through-margin internal coolant capability (TM IC) ensures optimal thermal management and chip control across a wide range of workpiece materials, even at extended 5×D depths.

ISO Designation Breakdown

Element	Code	Description
Manufacturer	KYO	Kyocera Corporation
Tool Category	DRILL	Solid Carbide Drill
Nominal Diameter	#21	0.1590" (4.04 mm)
Flute Count	3FL	3 Flutes
L/D Ratio	5XD	Flute Length = 5 × Diameter
Coolant Type	TM IC	Through-Margin Internal Coolant
Material Grade	CA6535	PVD Coated Carbide
MPN	SGS55164	Manufacturer Part Number

Engineering Dimensions & Geometry

Parameter	Value	Unit
Nominal Diameter (D1)	0.1590	inch
Nominal Diameter (D1)	4.04	mm
Flute Length (L1)	0.80	inch
Overall Length (L)	3.29	inch
Shank Diameter (D2)	0.250	inch
Point Angle	140°	degrees
Helix Angle	30°	degrees
Corner Radius	0.003	inch
Web Thickness	0.0286	inch
Tolerance (m7)	+0.0004 / +0.0012	inch

Grade Details - Key Grade Characteristics

The CA6535 grade is a high-performance PVD-coated carbide specifically developed for deep-hole drilling applications in ferrous and non-ferrous materials. This grade combines a tough micro-grain carbide substrate with a multi-layer coating architecture for optimal balance between wear resistance and edge toughness at extended length-to-diameter ratios.

Characteristic	Specification
Substrate Type	Micro-grain Tungsten Carbide (WC-Co)
Coating Technology	PVD Multi-layer (TiAlN/TiN)
Coating Thickness	3-5 μm
Hardness (HV)	1,650
Transverse Rupture Strength	4,200 MPa
Thermal Conductivity	65 W/m·K
Max Operating Temperature	900°C (1,652°F)
Color Identification	Dark Gray/Violet

Grade Comparison Matrix

Grade	Coating	Wear Resistance	Toughness	Best For
CA6535	PVD Multi-layer	★★★★★	★★★★☆	General purpose, steel, stainless
PR1535	PVD	★★★★☆	★★★★★	Stainless steel, interrupted cuts
PR1725	PVD	★★★★★	★★★☆☆	Hardened steels, high-speed
CA025P	CVD	★★★★☆	★★★★☆	Cast iron, non-ferrous

Chipbreaker Profile

The #21 drill features an optimized 3-flute geometry with a proprietary chipbreaker design that ensures efficient chip formation and evacuation at extended 5×D depths. The flute profile is engineered to produce short, manageable chips even at elevated feed rates, reducing the risk of chip packing and improving hole quality in deep-hole applications.

Flute Form: Parabolic gash with polished rake surface for reduced friction
Chipbreaker Type: Continuous micro-edge geometry along cutting lip
Chip Control: Optimized for spiral/curled chip formation in ductile materials
Evacuation Path: Wide flute gulley with polished surface finish (Ra 0.2 μm)
Coolant Channels: Dual through-margin coolant ports delivering 20-30 bar pressure

Recommended Applications & Workpiece Materials

Material Group	ISO Code	Machinability	Recommendation
Carbon Steel (< 0.5% C)	P.1	Excellent	Ideal - high speeds and feeds
Carbon Steel (> 0.5% C)	P.2	Good	Recommended - reduce speed 10%
Alloy Steel (annealed)	P.3	Good	Recommended
Stainless Steel (austenitic)	M.1	Moderate	Suitable - use peck cycle
Gray Cast Iron	K.1	Excellent	Ideal - excellent chip control
Ductile Cast Iron	K.2	Good	Recommended
Aluminum Alloy (wrought)	N.1	Excellent	Suitable - high speeds possible
Titanium Alloy	S.1	Moderate	Possible - reduce parameters 30%

Application Map by Operation

Operation	Suitability	Notes
Through-Hole Drilling	★★★★★	Primary application - optimized exit burr control
Blind-Hole Drilling	★★★★☆	Excellent - chip evacuation via coolant
Deep-Hole Drilling (5×D)	★★★★★	Optimized - dedicated 5×D geometry
Stack Drilling	★★★★☆	Recommended with proper clamping
Cross-Hole Drilling	★★★☆☆	Reduce feed by 20% at intersection
Enlarging / Reaming	★★☆☆☆	Not recommended - use dedicated reamer

Recommended Cutting Conditions

Workpiece Material	Cutting Speed (Vc)	Feed per Rev (fn)	RPM Range
Mild Steel (P.1)	40-60 m/min	0.08-0.12 mm/rev	24,025-36,037
Stainless Steel (M.1)	20-30 m/min	0.05-0.08 mm/rev	12,012-18,018
Cast Iron (K.1)	30-45 m/min	0.06-0.10 mm/rev	18,018-27,027
Aluminum (N.1)	80-120 m/min	0.15-0.25 mm/rev	48,050-72,074

Operating Guidelines

Coolant Pressure: Maintain 20-30 bar (290-435 psi) for effective chip evacuation and tool cooling at 5×D depths
Peck Cycle: For depths > 3×D, use peck depth of 1.5-2×D with full retract to break chips
Entry Angle: Ensure perpendicular entry (±0.5°) to prevent chipping and uneven wear
Pre-Drill: For cast iron or interrupted surfaces, chamfer entry with 90° countersink
Speed/Feed Ramp: Reduce feed by 30% for the first 2 mm of entry to stabilize cutting
Tool Life Check: Monitor flank wear (VB); regrind or replace when VB exceeds 0.3 mm
Surface Finish: For mirror finish requirements, reduce feed by 20% and increase speed by 10%

Toolholder Compatibility

Holder Type	Compatibility	Notes
Hydraulic Chuck (HSK-A63)	★★★★★	Best damping - recommended for precision
Shrink Fit Holder	★★★★★	Excellent runout (< 3 μm at 3×D)
ER Collet Chuck (ER25/ER32)	★★★★☆	Suitable - ensure collet quality and torque
Milling Chuck	★★★★☆	Good for general machining
Drill Chuck (Keyless)	★★☆☆☆	Not recommended - excessive runout

Packaging & Ordering Information

Item	Details
Packaging Type	Individual plastic tube with protective wax tip
Quantity per Pack	1 piece
Master Carton	50 pieces (bulk orders)
Barcode (UPC)	Assigned at dispatch
Warranty	Standard manufacturer defect warranty
Certification	ISO 9001:2015, ISO 14001:2015
Country of Manufacture	Japan

Catalog Meta Data

Field	Value
Product Family	Kyocera SGS5 Series Solid Carbide Drills
Catalog Page	2026 General Machining Catalog, Section D-3
Series Designation	SGS551xx (3-Flute Through-Margin 5×D)
Replacement For	Standard HSS drills, competing carbide drills
Cross-Reference	Consult Kyocera technical support for equivalents
Last Catalog Update	June 2026
Technical Support	Available via Kyotow.com application engineering

All specifications are subject to standard manufacturing tolerances. For application-specific recommendations, contact our technical support team with your workpiece material and machine details.

Kyocera Product Authentication

✓ Genuine Product

Certificate of Authenticity

This verifies that this package contains a genuine item manufactured to the strict global standards of Kyocera.

Product Status Verified Original

Manufacturer Kyocera Corporation

Guaranteed Quality

Original Kyocera components ensure optimal device performance, precise output quality, and long-term hardware safety. Using non-genuine parts may impact hardware functions and void existing service agreements.

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.

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.

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.

Payments & Security 安全な決済方法

We process all international payments securely through PayPal, ensuring encrypted data protection and a safe, hassle-free global transaction.

Fast & Reliable Worldwide Shipping 国際スピード郵便

We provide priority worldwide logistics exclusively through our corporate DHL Express account, tracking shipments seamlessly from our hubs in Asia, Europe, and China. Enjoy reliable global distribution with a flat shipping rate of $50 USD for all international destinations.

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。

🇯🇵

Domestic Sourced

日本国内直接調達

Procured straight from Japan's local wholesale networks to capture maximum market arbitrage.

🛡️

100% Genuine

100% メーカー正規品

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

📉

No Regional Markups

海外上乗せ利益なし

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

Tags: #21 , 3FL , 5XD , Kyocera , SGS55164 , CA6535 , Carbide Drill , Through Coolant , Precision , CNC

Kyocera #21 CA6535 SGS55164 Carbide Drill - CNC Hole Machining

International Shipping Note

Product Overview

ISO Designation Breakdown

Engineering Dimensions & Geometry

Grade Details - Key Grade Characteristics

Grade Comparison Matrix

Chipbreaker Profile

Recommended Applications & Workpiece Materials

Application Map by Operation

Recommended Cutting Conditions

Operating Guidelines

Toolholder Compatibility

Packaging & Ordering Information

Catalog Meta Data

Certificate of Authenticity

Shipping & Stock Information 発送・在庫情報

Product Images & Technical Accuracy 正確な製品情報

Refund & Cancellation Policy 返品・キャンセルポリシー

Payments & Security 安全な決済方法

Fast & Reliable Worldwide Shipping 国際スピード郵便

Direct Supply Chain Transparency サプライチェーンの透明性

Domestic Sourced

100% Genuine

No Regional Markups

Information

My Account Information

Customer Service