DIJET

What DIJET does

DIJET is a Japan-headquartered manufacturer of professional-grade cemented carbide metal cutting tools and indexable inserts, organized as Dijet Industrial Co., Ltd (Osaka, Japan) with wholly-owned subsidiaries Dijet Inc. (Plymouth, Michigan, established 1983) serving North America and Dijet GmbH (Düsseldorf, Germany) serving Europe. The company manufactures its own carbide from raw materials at the Tondabayashi (Osaka) and Mie plants in Japan, and sells a portfolio of more than 40 active SKUs grouped into six families: 5-axis finishing inserts (barrel, lens, tangent, and torus geometries), finishing tools (Mirror Ball, Mirror Radius, Diemaster 5G, Backdraft, Back & Forth Cutter, Finish Jet Mill), 90° square-shoulder cutters (Aero-Chipper, EXSAP, EXSIX, SIC EVO, S-Heads), high-feed mills (QM Mini/Max/G2 series, SKG series, EXSKS/KATANA, P10), radius/button cutters (Blade Chipper, Extreme Diemate, Super Diemaster, Swing Ball/Swing Ball-Neo), and indexable drills (TA-EZ). The company targets automotive, aerospace, defense, tool & die, mold making, and medical OEMs, with publicly displayed customer logos including Ford, Toyota, GM, Honda, Boeing, and GE.

The core technology proposition rests on proprietary carbide grades (JC8000 series, DH series for hardened materials, FZ series for aluminum, CBN inserts), in-house coatings, and proprietary indexable 3D geometries designed for 5-axis finishing and high-feed applications covering materials from aluminum through 60–70 HRC hardened steel and high-nickel aerospace alloys. DIJET claims to be the first company to introduce cermet to the machining world and positions itself on vertical integration from raw powder to finished insert as the source of tool life, consistency, and repeatability.

The business model is direct enterprise field sales supplemented by a CAD-download portal (database.dijet.co.jp and Google Drive indexable-tool folder) and PDF trade catalogs. Pricing is quote-based and not publicly disclosed, with volume pricing and promotional offers available for new customers expanding into new tool sizes. The company is a privately held subsidiary of Kobayashi Industrial Co., Ltd (Japan), with no venture funding, no public listing, and no disclosed revenue in the source data. It maintains wholly-owned regional offices with stocked inventory for JIT industrial customers and supports a strategic alliance with MST (Mitsubishi Steel Mfg. Co., Ltd.) displayed on the Dijet USA homepage.

Name

DIJET

Legal name

Dijet, Inc.

Website

https://dijetusa.com

Company type

Private

Founded year

1938

Operating status

Operating

Headcount range

11–50 employees

Short description

DIJET is a Japanese-headquartered manufacturer of proprietary cemented carbide indexable cutting tools and inserts, serving automotive, aerospace, defense, tool & die, and mold-making OEMs globally through direct enterprise sales in Japan, the US, and Germany.

Ownership category

akta.pro rank

Headquarters

HQ city

Plymouth

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Cutting Tool Sales: Sale of indexable carbide cutting tools including inserts, end mills, face mills, drills, and modular tooling systems. Products are sold as physical tools with multiple cutting edges per insert, providing cost-effective metal removal solutions.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

DIJET manufactures professional-grade carbide cutting tools and indexable inserts from raw cemented carbide produced in its own Japanese plants. Its product portfolio spans indexable 5-axis finishing inserts (barrel/lens/torus), face mills, end mills, high feed milling systems, square shoulder cutters, radius/button cutters, and indexable and solid carbide drills, sold to industrial manufacturers in automotive, aerospace, defense, tool & die, and mold making.

Product overview

DIJET is a Japanese manufacturer of professional-grade metal cutting tools and indexable carbide inserts serving the automotive, aerospace, defense, tool & die, and mold making industries. The company manufactures cemented carbide from raw materials in Japan, producing a comprehensive portfolio organized into product lines: 5-AXIS finishing tools (KRM, LRM, MQT, TNM, TPM, STLP, SMHB, FJVA, SFSB, SFSR) featuring barrel, lens, and tangent geometries for complex surface finishing; FINISHING tools (Diemaster 5G, MIRROR BALL, MIRROR RADIUS, BACKDRAFT, BACK & FORTH CUTTER, FINISH JET MILL) for high-tolerance surface machining; 90° SQUARE SHOULDER cutters (AERO-CHIPPER MINI, AERO-CHIPPER, EXSAP-11, EXSAP-17, EXSIX, SIC EVO, S-HEADS) for face milling, slotting, and plunging; HIGH FEED tools (QM MINI, QM MAX, QM MAX G2, QM G2 MINI, SKG-09, SKG-10, SKG-14, SKG-20, EXSKS-05/KATANA, EXSKS-07, EXSKS-09, P10) for high-speed metal removal; RADIUS/button tooling (BLADE CHIPPER/TDM, EXTREME DIEMATE/EXTDM, SUPER DIEMASTER, SWING BALL, SWING BALL-NEO) for profile and contour machining; and indexable DRILLS (TA-EZ Drill) plus solid carbide drills and end mills.

Differentiator

Problem solved

Functional benefit

Brands

• Diemaster: Product line of finishing tools including Diemaster 5G
• KATANA
• Mirror Series

Products and services

• KRM (Barrel Radius Insert) Indexable barrel-radius insert with outer barrel radius for finishing flat surfaces and gradual side wall curvature; fits into Mirror Radius body with insert sizes 16-30mm.
• LRM (Lens Barrel Insert) Indexable lens barrel insert for 5-axis finishing on gently curved surfaces, achieving better surface finish than conventional ball nose and allowing tool tilt up to 10 degrees; insert sizes 16-30mm.
• MQT (Barrel Tool for 3-Axis) Barrel tool for 3-axis machines that mills 0-8 degree tapered walls using 60mm radius barrel inserts (effective 120mm ball nose) for large step-downs while maintaining small cusp height; available in 0, 3, and 5 degree angled bodies, metric sizes 16-35mm.
• TNM (Tangent Barrel Insert) Indexable tangent barrel insert for finishing continuous three-dimensional curved surfaces with tip radius for small areas and larger periphery radius for side finish; insert sizes 16-20mm.
• TPM (Tapered Barrel Insert) Indexable tapered barrel insert with 400mm and 500mm outer radius for larger steps while finishing; insert sizes 16-20mm.
• STLP (4-Fluted 20-Degree Modular Barrel) 4-fluted 20-degree modular barrel for 5-axis finishing with 1500mm outer radius for extremely shallow cusp heights and large step-downs; DH115 grade for mold steels and aluminum.
• Diemaster 5G Double-sided high-accuracy face mill with 6-corner H-class tolerance inserts serving as a high-efficiency multi-purpose finisher; metric face mill sizes 52-66mm, modular heads 16-42mm.
• MIRROR BALL Premier indexable ball nose with multiple geometry options (A, S, SS, SSR, TG, TS, GRM) for finishing, helical machining of high-temp alloys and aluminum, sharp-edge helical for hard materials, undercutting, negative helical up to 60 HRC, semi-finishing, and no-tip mirror applications; insert sizes 6-32mm and 0.250"-1.250".
• MIRROR RADIUS Top-of-line indexable bull nose with ground screw locating for high repeatability, available in neutral geometry (longer side wiper) and high feed geometry (helical with smaller side wiper for less deflection); corner radii 0.1-3.0mm and also fits Mirror Ball bodies.
• BACKDRAFT Dual-purpose insert for roughing and finishing, predominantly for cavity and profile milling, with 2mm side wiper for both side and bottom finish and CBN-tipped option for bottom face finishing; end mills 1.000"-1.250" and 40mm; face mills 2.000"-2.500" and 50-63mm.
• FINISH JET MILL Large face mill for finishing with combination finishing and roughing cartridges for stable machining, 4 finishing inserts for depths below 0.1mm, and axially adjustable inserts to control face run out; metric sizes 80-250mm.
• AERO-CHIPPER MINI Designated aluminum cutter for fast metal removal with polished up-sharp insert, high precision periphery ground, and DLC coated option; end mills 0.625"-1.250", modular heads 0.625"-1.500", corner radii 0.2-2.0mm.
• AERO-CHIPPER High-performance aluminum cutter achieving feed rates up to 2000 IPM and metal removal of 400 in³/min, with polished up-sharp insert, 9 corner radius options, coated grade for abrasive cast aluminum, and G-Body option for pocket integrity; end mills 20-40mm and face mills 50-160mm.
• EXSAP-11 11mm double-sided insert with 4 positive cutting edges featuring arc geometry with G-class grind for roughing and semi-finishing, with -SL chipbreaker variant for titanium and stainless; end mills 16-40mm and face mills 40-80mm.
• EXSAP-17 17mm double-sided insert with 4 positive cutting edges and reinforced pocket seating, arc geometry with G-class grind for roughing and semi-finishing, corner radii 0.4-3mm; end mills 1.000"-1.500" and face mills 50-80mm.
• EXSIX Trigon insert with 6 positive axial cutting edges for face milling, slotting, and plunging, with 3D design that reduces tool pressure and 7.5mm thickness for stable machining and long tool life.
• SIC EVO Evolved 90-degree shoulder mill for machining vertical walls and aggressive ramp angles; SSV style with max depth of cut 15mm and SSVL style up to 99mm, with ground inserts for finishing and uncoated polished inserts for aluminum; end mills 25-50mm and face mills 40-125mm.
• QM MINI Multi-purpose miniature high feed for light machining, square-up, and finish operations, where the same body accepts high feed, chip breaker, mirror, and square shoulder inserts and is excellent for 5-axis spindles due to low tool pressure; end mills 10-14mm and modular heads 10-32mm.
• QM MAX Versatile high feed covering all materials from Inconel to 60 HRC weld, with the same body accepting high feed, square shoulder, and ground finish inserts and free-machining positive geometry; end mills, face mills 40-66mm, and modular heads 16-42mm.
• QM G2 MINI Compact double-sided high feed insert with 4 cutting edges designed for roughing and high metal removal rates in limited spaces; modular head sizes 10-16mm metric, 0.500"-0.625" inch.
• EXSKS-05 (KATANA) High feed with unique 3D geometry insert and M3 screw clamping system, inspired by Japanese Samurai sword and named KATANA for smooth cutting through workpieces; maximum depth of cut 1.25mm (0.050"); available in modular head, end mill, and face mill styles; end mills 20-32mm and face mills 40-63mm.
• EXSKS-07 Multi-purpose high feed with negative geometry but free machining on spindle load, maximum depth of cut 2mm, capable of feed rates up to 500 IPM and double-sided for cost efficiency; end mills 32-40mm, face mills 50-100mm, and modular heads 32-42mm.
• P10 Face Mill High-performance economical double-sided face mill with 10 cutting edges, featuring two entry angles (45 degrees for larger depth of cut and 27 degrees for high-feed machining); available in inch diameters from 2.000" to 10.000".
• SKG-09 9mm square insert designed for aerospace components including Ni-base heat resistant alloys, titanium alloys, and hardened stainless steels, with fine-pitched pockets that allow high tooth count for faster feeds and maximum depth of cut 0.9mm; end mills 25-42mm.
• EXTREME DIEMATE (EXTDM) 12mm double-sided round button insert with 8 cutting edges, maximum depth of cut 3mm, faceted insert sits negative in holder with positive chip breakers including helical cutting edge option, and irregular pocket pitch reduces chatter; face mills 50-66mm and modular heads 32-40mm.
• SUPER DIEMASTER Single-sided round button cutter with positive pocket seating, insert sizes 7-20mm covering materials from aluminum to hardened 60 HRC weld, with G-body treatment protecting against heat and deformation; end mills, face mills 50-125mm, and modular heads 15-42mm.
• SWING BALL

Quantifiable outcome

• The Aero Chipper has achieved feed rates of 2000 IPM with metal removals of 400 in³/min
• +1 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• MST (Mitsubishi Steel Mfg. Co., Ltd.)coreStrategic or Co-development PartnerMST partnership displayed prominently on Dijet USA homepage. MST is a Japanese manufacturer with complementary technology. The partnership appears to be a strategic alliance for technology sharing or distribution in the metal cutting industry.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Kennametal: US-headquartered major in metal cutting and wear-resistant solutions serving aerospace, defense, automotive, and general engineering with indexable inserts and tooling systems directly comparable to DIJET's portfolio.
• Sandvik Coromant: Global market leader in metal cutting tools, offering a broad catalog of inserts, end mills, drills, and tooling systems for automotive, aerospace, and general engineering — overlapping with DIJET's portfolio across all verticals.
• Seco Tools: Swedish global supplier of metal cutting solutions including inserts, milling, turning, and drilling tooling with strong aerospace and automotive exposure — comparable product mix and end markets.

Emerging players

• MST Corporation (Mitsubishi Steel Mfg.): Japanese specialty steel manufacturer with a strategic partnership displayed on DIJET USA's site — overlapping in materials technology used in cutting tools and adjacent wear-resistant components.

Direct peers

• Walter Tools (Walter AG): German manufacturer of precision cutting tools for metalworking, including indexable inserts, milling cutters, and drilling systems — overlapping with DIJET's European customer base and aerospace/aerospace-defense offerings.
• OSG Corporation: Japanese cutting tool specialist with a strong portfolio in end mills, taps, and indexable tooling serving automotive, aerospace, and mold-making — directly comparable to DIJET's verticals.
• Kyocera (Industrial Tools): Japanese conglomerate with a precision tools division producing carbide inserts and indexable tooling for machining — competing directly in the Japan-domestic and export markets.
• Sumitomo Electric Hardmetal: Japanese manufacturer of carbide inserts, end mills, and drilling tools serving automotive and aerospace — a direct geographic and product peer to DIJET.
• Mitsubishi Materials (Cutting Tools Division): Japanese cemented carbide and indexable insert manufacturer with overlapping product lines in face milling, high-feed tooling, and 5-axis finishing — the closest direct competitor in the Japanese carbide space.

Others

• Iscar (IMC Group): Global cutting tool manufacturer owned by IMC, with deep presence in indexable inserts, high-feed milling, and aerospace tooling — comparable to DIJET across most product families and end markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/dijet_usa
• YouTubeyoutube.com/channel/UCUBWdGrRiZ_abeJy6gdy5Aw
• Facebookfacebook.com/dijetusa
• LinkedInlinkedin.com/company/dijet-incorporated
• Instagraminstagram.com/dijetusa

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 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 DIJET