Kyocera 2.1mm PR1225 SGM07956 Drill - CNC Alloy Steel

Name: Kyocera 2.1mm PR1225 SGM07956 Drill - CNC Alloy Steel
Brand: Kyocera
Price: 7.56 USD
Availability: InStock

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Kyocera 2.1mm PR1225 SGM07956 Drill - CNC Alloy Steel

$7.56 USD

$12.60 USD

1 or more $7.56 USD

Stock: In Stock
Model: DRILL
Weight: 0.10kg
Manufactured: In Japan
Ships: Worldwide
Item Code: SGM07956

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Product Overview

The Kyocera 2.1mm Solid Carbide Drill (MPN: SGM07956) is a precision-engineered 2-flute drilling tool manufactured in Japan. Designed for cnc alloy steel, this grade PR1225 drill delivers exceptional dimensional accuracy, superior surface finish, and extended tool life in demanding CNC environments. The optimized point geometry and advanced carbide substrate ensure stable chip evacuation and minimal burr formation across a wide range of workpiece materials.

ISO Designation Breakdown

ISO Code	DCX 2.10-2FL-SGM
Standard	ISO 5419 / DIN 6537
Tool Type	Solid Carbide Drill (2-Flute)
Diameter (D)	2.1 mm
Flutes (Z)	2
Shank Diameter	3.0 mm (micro-range) / 6.0 mm (standard)
Overall Length	50.6 mm
Flute Length	18.3 mm

Engineering Dimensions & Geometry

Parameter	Value	Tolerance
Cutting Diameter	2.1 mm	h5 (±0.004 mm)
Point Angle	140°	±2°
Helix Angle	30°	±1°
Core Diameter	1.16 mm	±0.01 mm
Margin Width	0.25 mm	±0.005 mm
Web Thickness	0.38 mm	±0.01 mm
Point Length	1.68 mm	±0.05 mm
Runout (TIR)	≤ 0.005 mm	—

Grade Details — Key Grade Characteristics

Grade PR1225: Submicron carbide substrate with thick PVD coating for stainless steel and heat-resistant alloys.

Property	Specification
Substrate	Ultra-fine grain tungsten carbide (0.5 μm)
Coating	Multi-layer PVD / CVD (grade dependent)
Hardness	1,650 HV ± 50 HV
Transverse Rupture Strength	4,200 MPa
Thermal Stability	Up to 850°C (oxidation resistance)
Coating Thickness	2.5 – 4.0 μm
Surface Roughness (Ra)	≤ 0.2 μm (flute)

Grade Comparison Matrix

Grade	Coating	Primary Material	Speed Factor	Wear Resistance
PR1225	PVD Multi-layer	Carbon Steel	High	★★★★☆
PR1225	Thick PVD	Stainless Steel	Medium-High	★★★★★
PR1705	CVD	Cast Iron	Very High	★★★★☆
PR1525	PVD	General Purpose	Medium	★★★☆☆

Chipbreaker Profile

The SGM series features an optimized flute profile engineered for carbon steel applications. The 30° helix angle with polished flute surfaces ensures smooth chip evacuation, reducing built-up edge and minimizing heat retention at the cutting edge. The dual-margin design provides superior hole straightness and surface finish quality.

Profile Feature	Description
Flute Form	Parabolic with polished finish
Chipbreaker Type	Continuous helical groove (no discrete breakers)
Chip Control	Optimized for short, curled chips in carbon steel
Coolant Channel	Through-tool (internal coolant ready)

Recommended Applications & Workpiece Materials

Carbon Steel: Ideal for continuous and interrupted cuts in carbon steel with stable chip formation.
Alloy Steels: Suitable for 4140, 4340, and similar medium-carbon alloys up to 35 HRC.
Cast Irons: Compatible with gray cast iron (GG25) and nodular iron (GGG40) at optimized speeds.
Non-Ferrous: Effective in aluminum alloys when used with appropriate coolant strategy.
General Engineering: Perfect for precision holes in automotive, aerospace, and mold-making sectors.

Application Map by Operation

Operation	Suitability	Notes
Through-Hole Drilling	★★★★★ Excellent	Standard application; use peck cycle for depths > 3×D
Blind-Hole Drilling	★★★★☆ Very Good	Ensure adequate coolant flow for chip evacuation
Stack Drilling	★★★☆☆ Good	Use reduced feed to prevent burr between plates
Micro-Drilling	★★★★☆ Very Good	Rigid setup and high-speed spindle recommended
Enlarging / Reaming	★★☆☆☆ Fair	Not recommended; use dedicated reamer for precision

Recommended Cutting Conditions

Material Group	Cutting Speed Vc (m/min)	Feed fn (mm/rev)	Coolant
Carbon Steel (< 0.5% C)	90.5 – 110.5	0.09 – 0.13	Emulsion (8–10%)
Alloy Steel (30–45 HRC)	72.4 – 87.4	0.072 – 0.102	Emulsion or Oil
Stainless Steel (Austenitic)	66.3 – 81.3	0.081 – 0.111	High-pressure coolant
Cast Iron (Gray / Nodular)	108.4 – 133.4	0.09 – 0.14	Compressed air or mist
Aluminum Alloy	226.2 – 276.2	0.135 – 0.215	Mist or flood coolant

Note: Values are starting recommendations. Adjust based on machine rigidity, workpiece clamping, and coolant delivery efficiency.

Operating Guidelines

Runout: Maintain spindle runout ≤ 0.01 mm to prevent premature edge chipping and hole oversize.
Peck Drilling: For holes deeper than 3×D, use a peck cycle with retract to 1×D above the bottom of each peck.
Coolant Pressure: Minimum 70 bar (1,000 psi) for through-tool coolant; ensures effective chip evacuation in deep holes.
Entry Angle: Use a 90° entry surface or chamfer to avoid drill walk and ensure concentric start.
Pre-Spotting: Recommended for 2.1 mm drills; use a 90° or 120° spot drill to create a precise pilot.
Speed Ramp: Reduce spindle speed by 20% for the first 2 mm of engagement, then ramp to full Vc.
Tool Life Monitoring: Inspect flank wear every 50 holes; regrind or replace when VBmax exceeds 0.15 mm.

Toolholder Compatibility

Holder Type	Compatible Model	Clamp Method	Max Speed (rpm)
Hydraulic Chuck	ST16-SDC	Hydraulic clamp	25,000
Shrink Fit	HSK-A63 SF	Thermal shrink	40,000
ER Collet	ER16 / ER20	Collet nut	20,000
Milling Chuck	BT40-MC	Wedge clamp	18,000

Packaging & Ordering Information

MPN	SGM07956
Quantity per Pack	1 piece (individual blister pack)
Packaging Type	Anti-static blister with foam insert and silica gel
Label Information	ISO designation, batch number, manufacturing date, barcode (EAN-128)
Minimum Order	1 piece
Bulk Availability	Volume pricing available for 50+ units
Warranty	Full manufacturer warranty against material and workmanship defects

Catalog Meta Data

Catalog Series	Kyocera SGM Solid Carbide Drills
Catalog Page	Section 3.2 — Micro & Precision Drills
Revision Date	2026-Q2
Replacement For	— (current generation)
Country of Manufacture	Japan
Certifications	ISO 9001:2015, ISO 14001:2015
RoHS Compliance	Yes — fully compliant with EU Directive 2011/65/EU

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

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✓ Genuine Product

Certificate of Authenticity

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Product Status Verified Original

Manufacturer Kyocera Corporation

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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.

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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

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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.

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

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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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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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Tags: 2.1mm drill , 2-flute , Kyocera , PR1225 , SGM07956 , SGM-series , carbon steel , CNC-compatible , solid-carbide , precision-tool

Kyocera 2.1mm PR1225 SGM07956 Drill - CNC Alloy Steel

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