Est Tools

What Est Tools does

EST Tools (恒锋工具股份有限公司, legal name Hengfeng Tools Co., Ltd.) is a Chinese public manufacturer of precision cutting and measuring tools, founded in 1990 and headquartered in Haiyan, Zhejiang. The company is listed on the Shenzhen Stock Exchange ChiNext board under stock code 300488 following a July 2015 IPO that raised 213 million yuan. It operates 800+ employees across three domestic production bases (Haiyan headquarters, Hengfeng Road facility, Wenling Shangyou factory) and two wholly-owned overseas subsidiaries in Michigan, USA (2016) and Salzburg, Austria (2024).

EST Tools offers eight core product families — round broaches, form broaches, cold forming tools, precision measuring tools (gauges), gear cutting tools, milling tools, drilling tools, and taps — organized around three functional categories (spline, gear, thread processing) and three tooling forms (high-speed steel, carbide, indexable). It cites 22 core technologies including five-axis precision control, PVD coating, helical broaching, cold forming, and digital twin design, and holds 32 invention patents and 71 utility model patents. It also operates a CNAS-accredited spline measurement laboratory and is the only Chinese manufacturer (fifth globally) capable of producing planetary internal ring gear helical broaches.

Revenue is generated through one-time sales of precision cutting and measuring tools and high-end production services (precision resharpening, processing technology services, CNAS-certified inspection, custom design, and synchronous new product development). The company sells primarily through direct enterprise B2B sales targeting automotive (SAIC, Deyang Xinrui, Zhuzhou Gear Factory), aerospace (C919 program), power generation (Harbin Turbine), rail transit, and construction machinery customers. Pricing is custom-quoted rather than list-priced. In January 2024 the company issued a 620 million yuan convertible bond to add 1.5 million pieces of high-end precision cutting tool capacity, and in 2025 acquired the tap production line of Guangzhou Conprofe Technology to extend its taps product family.

Name

Est Tools

Legal name

恒锋工具股份有限公司

Website

https://esttools.com

Company type

Public

Founded year

1990

Operating status

Operating

Headcount range

501–1,000 employees

Short description

EST Tools (恒锋工具股份有限公司) is a Chinese ChiNext-listed precision cutting and measuring toolmaker (Shenzhen stock code 300488) serving automotive, aerospace, and power generation manufacturers through direct B2B enterprise sales and overseas subsidiaries in the US and Austria.

Ownership category

akta.pro rank

Product category

Precision Cutting Tools

NAICS

Cutting Tool and Machine Tool Accessory Manufacturing (333515), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513)

SIC

Machine Tools, Metal Cutting Types (3541), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Metrology, Inspection & Machine Tool Accessories (CMMs, Probing, Gauging) (IMAHADAK)

Keywords

• Precision cutting tools
• Broaching tools
• Precision measuring instruments
• Gear cutting tools
• Cold forming tools

Headquarters

HQ city

Jiaxing

HQ country

China

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Precision Cutting Tools Sales: Manufacturing and selling precision cutting and measuring tools including round broaches, form broaches, gear cutting tools, spline gauges, taps, and drilling tools
2. Precision Measuring Tools Sales: Manufacturing and selling precision measuring tools including spline plug gauges, thread gauges, and various specialized measuring instruments
3. High-end Production Services: Precision resharpening services, processing technology services (helical broaching, spline processing), inspection and testing services with CNAS qualification, custom design services, and new product synchronous development services

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

EST Tools manufactures and sells precision cutting and measuring tools — including round broaches, form broaches, cold forming tools, gear cutting tools, milling tools, drilling tools, taps, and precision measuring instruments (spline/thread gauges) — to enterprise manufacturers in automotive, aerospace, power generation, and heavy machinery industries. The company also provides high-end production services such as precision resharpening, processing technology support, CNAS-accredited inspection and testing, custom tool design, and synchronous new product development.

Product overview

Est Tools (恒锋工具股份有限公司) is a precision cutting and measuring tools manufacturer offering eight core product families: Round Broaches (圆类拉刀), Form Broaches (平面类拉刀), Cold Forming Tools (冷挤压成型刀具), Precision Measuring Tools (精密量具), Gear Cutting Tools (齿轮刀具), Milling Tools (铣削刀具), Drilling Tools (钻削刀具), and Taps (丝锥). The company also provides high-end production services including precision resharpening, processing technology (broaching, rolling, skiving), inspection/testing with CNAS qualification, custom design, and new product synchronous development. Products are categorized around three fundamental applications (spline, gear, thread), three processing technologies (broaching, drilling, milling), and three tooling forms (high-speed steel, carbide, indexable). The company went public on Shenzhen Stock Exchange in 2015 (stock code: 300488).

Differentiator

Problem solved

Functional benefit

Products and services

• Round Broaches (圆类拉刀) High-precision broaching tools including spline broaches, helical ring gear broaches, hard broaches, extra large ring gear broaches, and extra small broaches for automotive, aerospace, and power generation machining applications.
• Form Broaches (平面类拉刀) Form broaching tools for turbine disk slotting, steering rack broaching, end-tooth plane multi-key broaches, pot broaches, car brake caliper brackets, high-precision keyways, and indexable applications.
• Cold Forming Tools (冷挤压成型刀具) Cold forming tools including spline forming racks, thread forming racks, oil groove forming racks, rolling dies, pressing mandrels, extrusion dies, and inner spline cold forming tools for spline and thread production.
• Precision Measuring Tools (精密量具) Precision measuring instruments including spline plug and ring gauges, thread plug and ring gauges, arbors, expanding mandrels, master gears, spline/gear MDK meters, tooth thickness meters, and handheld spline measuring devices; ranked #1 in China for many consecutive years.
• Gear Cutting Tools (齿轮刀具) Gear cutting tools including HSS and carbide hobs, rack milling cutters, shaping cutters, skiving cutters, extra-small module gear cutters, and carbide worm milling cutters.
• Milling Tools (铣削刀具) Milling tools for turbine end mills, fir-tree end mills, saw blade milling, CVJ ball milling, thread milling, spline milling, aerospace turbine disk machining, and indexable profile milling.
• Drilling Tools (钻削刀具) Drilling tools including TCT and HSS annular cutters, rail cutters, hole saws, pilot pins, step drills, BTA drills, gun drills, and related inserts and accessories.
• Taps (丝锥)

Quantifiable outcome

• CNC precision broaching tools occupy over 30% of China's market share
• +2 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Shanghai Jiaotong UniversitycoreStrategic or Co-development Partner · 1 January 2018Joint research partnership for 'High-efficiency Cutting Tool Design, Preparation and Application' project. The project won the Second Prize of National Science and Technology Progress Award in 2017. Also cooperated on 'Key Technologies and Applications of Precision, Complex and High-performance Tool Design and Manufacturing'.
• Shanghai Aircraft Manufacturing Co., Ltd.coreStrategic or Co-development PartnerPartnership in 'production, learning and research' collaboration for high-efficiency cutting tools research and development.
• Shanghai Turbine PlantcoreStrategic or Co-development PartnerPartnership in project team for efficient cutting tools research and development.
• Zhejiang UniversityminorStrategic or Co-development PartnerPartnership for undergraduate project internship programs and joint research collaborations.
• China Quality Certification CenterminorStrategic or Co-development PartnerJoint certification for 'Made in Zhejiang' brand certification of cylindrical straight-tooth involute spline gauge.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Sandvik AB: Swedish multinational and global leader in metal cutting tooling via its Sandvik Coromant brand. Directly comparable to EST Tools in broaches, gear cutting tools, and milling tools, but with vastly broader product portfolio, global service footprint, and R&D scale.
• Mitsubishi Materials Corporation: Japanese diversified materials and tooling group with significant cutting tool operations. Competes with EST Tools across carbide inserts, drills, and gear cutting tools, with much larger scale and global reach.
• Kennametal Inc. US-based global supplier of metalworking tools and wear-resistant solutions. Overlaps with EST Tools in metal cutting inserts, milling, and tooling for automotive/aerospace applications, with a wider industrial portfolio.

Direct peers

• OSG Corporation: Japanese manufacturer of taps, end mills, drills, and threading tools. Directly comparable to EST Tools' taps, drilling tools, and gear cutting product families, serving overlapping automotive and industrial customers.

Peers

• Sumitomo Electric Hardmetal / Sumitomo Electric Industriesname>:

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/ESTTools
• Xtwitter.com/ESTTools
• Instagraminstagram.com/est_tools
• LinkedInlinkedin.com/company/est-tools-co.-ltd

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Est Tools