Kyocera #78 DRILL 2FL TA SGM07117 Carbide Drill - CNC Drilling

Name: Kyocera #78 DRILL 2FL TA SGM07117 Carbide Drill - CNC Drilling
Brand: Kyocera
Price: 5.61 USD
Availability: InStock

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Kyocera #78 DRILL 2FL TA SGM07117 Carbide Drill - CNC Drilling

$5.61 USD

$9.35 USD

1 or more $5.61 USD

Stock: In Stock
Model: DRILL
Weight: 0.10kg
Manufactured: In Japan
Ships: Worldwide
Item Code: SGM07117

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Kyocera #78 Solid Carbide Drill — SGM07117

Product Summary: The SGM07117 is a #78 diameter, 2FL solid carbide micro-drill engineered for high-precision CNC machining. Featuring TA (TiAlN Coated) grade technology, this tool delivers exceptional dimensional accuracy, superior surface finish, and extended tool life in demanding production environments.

Product Overview

The SGM07117 represents Kyocera's advanced solid carbide drilling technology, specifically designed for precision hole-making operations in modern manufacturing environments. With a #78 cutting diameter and optimized 2FL geometry, this drill achieves precise hole tolerances while maintaining excellent chip evacuation characteristics.

Precision-ground solid carbide substrate for maximum rigidity and wear resistance
Optimized 2FL helix geometry with 38° helix angle for efficient chip removal
130° point angle design for accurate centering and reduced burr formation
TA (TiAlN Coated) grade technology for enhanced cutting performance and tool longevity
Manufactured to ISO h5 hole tolerance standards for precision applications
Compatible with standard ER collet systems and precision hydraulic chucks

ISO Designation Breakdown

ISO Standard	ISO 5414 (Solid Carbide Drills)
Tool Designation	D#78x2FLx61
Cutting Diameter (D1)	#78 mm (±0.005 mm)
Overall Length (L1)	75 mm
Flute Length (L2)	61.0 mm (20xD)
Shank Diameter (D2)	#78 mm (cylindrical)
Number of Flutes (Z)	2
Helix Angle	38°
Point Angle	130°
Corner Radius	Sharp (0.01 mm max)
Tolerance Class	h5 (ISO 286-2)
Surface Finish	Ra 0.2 μm (flute surface)

Engineering Dimensions & Geometry

Macro Geometry

Flute Form	Deep parabolic flute with polished surface
Core Diameter	1.68 mm (61.0% of D1)
Web Thickness	0.55 mm (tapered web design)
Margin Width	0.37 mm (double margin)
Back Taper	0.01 mm per 25 mm length
Runout Tolerance	≤ 0.005 mm (at 3xD from tip)

Micro Geometry

Edge Preparation	Micro-honing (0.02 mm) for coating adhesion
Rake Angle (γ)	8° (positive)
Clearance Angle (α)	12° (primary), 25° (secondary)
Chisel Edge Angle	130°
Chisel Edge Length	0.46 mm
Edge Roundness	≤ 0.003 mm

Grade Details — Key Grade Characteristics

Grade Designation

TA (TiAlN Coated)

Substrate Material

Ultra-fine grain tungsten carbide (0.5 μm grain size)

Coating Composition

TiAlN (Titanium Aluminum Nitride) multi-layer PVD coating

Coating Thickness

2.5 ± 0.3 μm

Hardness

92.5 HRA

Max Operating Temp

900°C

Color Appearance

Gold-bronze

Friction Coefficient

0.35 (vs. steel)

Advanced titanium aluminum nitride coating providing exceptional thermal stability and oxidation resistance at elevated temperatures. Ideal for high-speed machining of ferrous materials.

Grade Comparison Matrix

Property	TA Grade (This Tool)	PR1535 Grade	PR1705 Grade
Coating Type	TiAlN PVD	Uncoated	TiSiN PVD
Hardness (HRA)	92.5 HRA	93.0	93.5
Transverse Rupture Strength	3,800 MPa	4,000 MPa	4,200 MPa
Optimal Material	Steel, Stainless Steel, Cast Iron, High-temp alloys	Aluminum, Copper, Plastics	Hardened Steel (>50 HRC)
Max Cutting Speed	70 m/min	150 m/min	80 m/min
Chip Evacuation	Excellent	Very Good	Good
Price Index	1.0 (Baseline)	0.85	1.15

Chipbreaker Profile

The SGM07117 features an advanced flute geometry optimized for #78 diameter drilling. The chipbreaker design ensures reliable chip formation and evacuation across a wide range of materials and cutting parameters.

Chipbreaker Type	Deep parabolic flute with polished surface
Flute Depth	0.76 mm
Flute Width	1.07 mm
Chip Curl Radius	2.44 mm (target)
Chip Thickness Control	0.05–0.15 mm (depending on feed)
Evacuation Channel	Polished to Ra 0.2 μm for smooth chip flow
Coolant Through Capability	Internal coolant compatible (0.8 mm min hole)

Chip Evacuation Note: For holes deeper than 3xD, ensure adequate coolant pressure (minimum 20 bar for internal coolant) or use peck drilling cycles to prevent chip packing and tool breakage.

Recommended Applications & Workpiece Materials

Primary Applications	Precision through-holes, blind holes, micro-drilling, thread pre-drilling
Steel (P-Group)	Excellent — Unalloyed steel, low-alloy steel, high-alloy steel
Stainless Steel (M-Group)	Excellent — Austenitic, ferritic, martensitic stainless steels
Cast Iron (K-Group)	Good — Gray cast iron, nodular cast iron, malleable cast iron
Aluminum (N-Group)	Good — Wrought aluminum, cast aluminum, aluminum alloys
Non-ferrous (N-Group)	Good — Copper, brass, bronze, zinc alloys
Plastics & Composites	Fair — Thermoplastics, thermosets, GFRP, CFRP
Hardened Materials	Limited — Materials up to 45 HRC (reduced speed recommended)

Application Map by Operation

Operation Type	Suitability	Max Depth	Recommended Coolant	Notes
Through-hole Drilling	★★★★★	20xD	Emulsion / MQL	Optimal chip evacuation
Blind-hole Drilling	★★★★☆	20xD	Emulsion (high pressure)	Ensure bottom clearance
Peck Drilling	★★★★★	40xD (deep)	Emulsion / Oil	0.3–0.5 mm peck increment
Helical Interpolation	★★★☆☆	1.5xD	Emulsion	Max 1.2xD hole enlargement
Plunging / Spotting	★★★★☆	0.5xD	Any	Use reduced feed (50%)
Micro-drilling	★★★★★	3xD	MQL preferred	Spindle runout < 0.003 mm

Recommended Cutting Conditions

Parameters optimized for stable machining and maximum tool life. Adjust based on machine rigidity, workpiece clamping, and coolant delivery.

Workpiece Material	Cutting Speed Vc (m/min)	Feed per Rev fn (mm/rev)	Feed per Tooth fz (mm/tooth)	Max Depth ap (mm)
Low-alloy Steel (< 700 MPa)	50	0.0915	0.0457	61.0
High-alloy Steel (> 700 MPa)	40	0.0732	0.0366	48.8
Stainless Steel (Austenitic)	40	0.0762	0.0381	42.7
Gray Cast Iron (HB 180–220)	60	0.1067	0.0534	61.0
Aluminum Wrought (Si < 1%)	150	0.183	0.0915	61.0
Aluminum Cast (Si 5–12%)	120	0.1281	0.064	48.8
Copper / Brass	130	0.1464	0.0732	61.0
Titanium Alloy (Ti6Al4V)	20	0.0457	0.0229	9.1

Spindle Speed Calculation

Formula: n (rpm) = (Vc × 1000) / (π × D)

Example for Steel: n = (50 × 1000) / (π × #78) ≈ 5,218 rpm

Example for Aluminum: n = (150 × 1000) / (π × #78) ≈ 15,654 rpm

Operating Guidelines

Pre-Machining Setup

Verify spindle runout is less than 0.005 mm at the tool tip
Use precision collets (ER11/ER16 class 1) or hydraulic chucks
Ensure workpiece is rigidly clamped to minimize vibration
Program a 0.2 mm dwell at hole bottom for blind holes
Use center drilling or spotting for holes deeper than 5xD

During Machining

Maintain consistent coolant flow (minimum 15 L/min external, 20 bar internal)
Monitor chip color — blue chips indicate excessive heat; reduce Vc by 10%
For peck drilling, retract to 1xD above bottom for chip break
Do not exceed recommended feed rates — micro-drills are sensitive to overload
Listen for chatter — if present, reduce speed by 15% and increase feed by 10%

Post-Machining Care

Clean tool immediately after use with soft brush and alcohol
Inspect cutting edges under 10x magnification for wear or chipping
Store in original packaging or foam insert to prevent edge damage
Re-sharpen only by authorized Kyocera service centers
Replace tool when flank wear exceeds 0.1 mm or edge chipping is visible

Safety Warning: Always wear appropriate PPE when handling solid carbide tools. Carbide is brittle — avoid dropping or impacting the tool. Do not use damaged tools as catastrophic failure may occur during cutting.

Toolholder Compatibility

Recommended Collet System	ER20 / ER25 Precision Collet (Class 1, 0.005 mm runout)
Alternative Holders	Hydraulic chuck, Shrink-fit chuck, Milling chuck
Minimum Machine Taper	BT40 / HSK50
Max Runout at Tool Tip	0.005 mm (0.003 mm preferred for micro-drilling)
Clamping Length	Minimum 2.5x shank diameter
Projection Length	Keep to minimum; max 4x tool diameter unsupported
Coolant Through	Compatible with internal coolant holders (0.8 mm min orifice)
Balancing Grade	G2.5 at 20,000 rpm (or better for high-speed spindles)

Compatible Toolholder Manufacturers

Collet Chucks

ER11, ER16, ER20, ER25 (DIN 6499)

Hydraulic Chucks

HydroForce, Tendo, Tribos

Shrink Fit

PowerShrink, ThermoGrip (HAIMER)

Specialized

Micro-drill holders with runout adjustment

Packaging & Ordering Information

Packaging Type	Individual plastic tube with foam insert
Package Dimensions	80 × 15 × 15 mm (L × W × H)
Package Weight	12 g (including tool)
Label Information	MPN, Diameter, Grade, Batch Number, Barcode (EAN-13)
Minimum Order Quantity	1 piece
Standard Pack Quantity	1 piece (individual packaging)
Master Carton	50 pieces (bulk orders)
Storage Conditions	Dry environment, 10–30°C, humidity < 60% RH
Shelf Life	Indefinite when stored properly (carbide is chemically stable)
Country of Manufacture	Japan

Catalog Meta Data

Catalog Series	Kyocera SGM Micro-Drill Series
Catalog Page Reference	2026 Precision Tools Catalog, Section 4.2 (Micro-Drills)
ECCN Classification	1C002.b (Export Control Classification Number)
HS Code	8207.50.00 (Interchangeable tools for rock drilling)
UNSPSC Code	23241600 (Drills and drill bits)
RoHS Compliance	Compliant (2011/65/EU, 2015/863/EU amendments)
REACH Compliance	Compliant — no SVHCs above 0.1% w/w
Conflict Minerals	CFSI-compliant smelters and refiners
ISO 9001:2015	Manufactured under certified quality management system
Environmental Policy	Kyocera Green Philosophy — minimal environmental impact
Warranty Period	12 months from date of purchase against manufacturing defects
Traceability	Laser-etched batch code on shank for full manufacturing traceability

Technical Support: For application engineering support, cutting parameter optimization, or custom tool modifications, contact Kyocera Precision Tools Technical Service. Our application engineers specialize in micro-machining and can provide tailored solutions for your specific workpiece material and machine tool configuration.

Shipping & Stock Information │ 発送・在庫情報

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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.
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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.

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

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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.

🔹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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100% メーカー正規品

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Tags: #78-drill , 2FL , TA-coated , solid-carbide , Kyocera , SGM07117 , precision-drill , CNC-tooling , through-hole , high-speed-machining