What J & M Diamond Tool does

J & M Diamond Tool, Inc. is a precision industrial tool manufacturer founded in 1972 and headquartered at a single 18,000-square-foot facility in East Providence, Rhode Island. The company designs and produces superabrasive cutting tools across three core materials: Polycrystalline Diamond (PCD), Cubic Boron Nitride (CBN), and Natural Diamond. Its technology stack relies on CNC wire EDM systems (AGIE/Agie Charmilles), a G.A.C. automatic laboratory vacuum furnace for diamond-to-steel fusion, and Swiss-made tool grinders, enabling capabilities such as wire EDM cutting of PCD into grooving tools as small as .006 wide and end mills with 1-1/2 inch cutting edges — precision beyond conventional grinding.

The product portfolio spans standard and indexable cutting inserts (Standard, Mini Tip, Flip Tip, Full Face, Solid CBN), diamond dressers (single point, hand-held, cluster, impregnated, prism, radius forming), boring bars and cartridges, turning tools, grooving tools, PCD end mills, custom form tools, scribers (hand, fiber optic, wafer), engravers, microhardness indenters, lapping compound, and specialty items such as commutator turning tools and ice-skate sharpening wheel dressers. The company holds a registered trademark on Flip Tip® CBN Inserts and claims sole U.S. manufacturing capability for that double-edged CBN design.

The commercial model is split between channel sales through approximately 150 U.S. distributors and direct sales to enterprise and SMB/institutional buyers via a transactional online storefront accepting Google Checkout, VISA, MasterCard, and PayPal, with worldwide shipping via UPS/FedEx. Pricing is unit-based across discrete SKUs (inserts priced from $84.00 to $595.00+, natural diamond dressers from $32.00 to $528.50). Revenue is one-time transactional with no subscription or recurring model; custom-tool engineering work is also offered on a project basis. End markets served are automotive (~80% of PCD tooling volume), aerospace, jewelry, woodworking, plastics, and fiber optics/semiconductors, with named customers including Colt Manufacturing and A.T. Cross.

Name

J & M Diamond Tool

Legal name

J & M Diamond Tool, Inc.

Website

https://diamondtool.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

11–50 employees

Short description

J & M Diamond Tool, Inc. is a U.S. precision tooling manufacturer producing PCD, CBN, and natural diamond cutting tools, inserts, dressers, scribers, and custom superabrasive parts for automotive, aerospace, jewelry, plastics, and fiber optics/semiconductor customers through 150 distributors and direct online sales.

Ownership category

akta.pro rank

Product category

Industrial Diamond Cutting Tools

NAICS

Cutting Tool and Machine Tool Accessory Manufacturing (333515)

SIC

Machine Tools, Metal Cutting Types (3541)

akta.pro primary industry

Metal Cutting Tools, Tooling & Workholding (Cutters, Inserts, Chucks, Fixtures) (IMAHADAB)

akta.pro secondary industry

Grinding, Honing & Superfinishing Equipment (IMAHADAE)

Keywords

• Diamond cutting tools
• PCD inserts
• CBN inserts
• Grinding wheel dressers
• Superabrasive tooling

Headquarters

HQ city

Providence

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Diamond Cutting Tool Sales: One-time sales of precision diamond tools including PCD inserts, CBN inserts, natural diamond dressers, scribers, and engravers. Products sold through distributors and direct online store.
2. Custom Tool Manufacturing: Design and manufacture of custom diamond tooling parts for unusual and challenging applications. Engineering design assistance and alternative design suggestions provided upon request.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels2 records

Core offering

J & M Diamond Tool designs and manufactures precision superabrasive cutting tools in PCD, CBN, and Natural Diamond materials, including indexable inserts, boring bars and cartridges, turning and grooving tools, end mills, form tools and routers, diamond scribers and engravers, grinding wheel dressers, microhardness indenters, diamond lapping compound, and specialty items like chain cutting tools and ice skate sharpening dressers. All products are made at the company's East Providence, Rhode Island facility, where it also provides custom design and engineering assistance for unusual and challenging machining applications.

Product overview

J & M Diamond Tool, Inc. is a manufacturer of precision diamond cutting tools and superabrasive products. The company offers a comprehensive portfolio of three core product lines: Polycrystalline Diamond (PCD) tools, Cubic Boron Nitride (CBN) tools, and Natural Diamond tools. Their product range includes cutting tool inserts (standard, mini tips, flip tips, full face, and solid CBN), diamond dressers (single point, cluster, impregnated, prism, radius forming, lapped chisels, multi-point), scribers and engravers (hand scribes, fiber optic scribes, wafer scribers, drag/rotary engravers), boring tools (bars and cartridges), turning tools, grooving tools, end mills, form tools/routers/cutters, and specialized products like lapping compound, microhardness indenters, commutator turning tools, chain cutting tools, and ice skate sharpeners. The company also provides custom manufacturing services for specialized applications. All products are manufactured in their East Providence, Rhode Island facility.

Differentiator

Problem solved

Functional benefit

Brands

• Flip Tip® CBN Inserts: Double-edged CBN cutting tool with registered trademark - unique product where company claims to be only manufacturer in the country
• Prism Grinding Wheel Dressers

Products and services

• Polycrystalline Diamond (PCD) Cutting Tools Superabrasive cutting tools made from synthetic polycrystalline diamond sintered with a metal matrix and bonded to tungsten carbide substrate; used by industrial manufacturers for machining nonferrous metals and abrasive non-metallics where carbide tools wear rapidly.
• Cubic Boron Nitride (CBN) Cutting Tools Superabrasive tools made from cubic boron nitride, second only to diamond in hardness and stable at high temperatures; used to machine hardened ferrous and super alloy materials at temperatures up to 1000°C, delivering sharp cutting edges and excellent surface finishes.
• Flip Tip® CBN Inserts Double-edged CBN cutting tool with two cutting edges for finish cuts; trademarked product the company describes as uniquely manufactured in the United States for hard turning applications where multiple cutting edges are needed.
• Natural Diamond Tools Precision cutting tools made from natural diamond, used where keener cutting edges are required for the finest finishes and closest tolerances in applications such as jewelry, contact lens, computer memory discs, and aluminum camera parts.
• Single Point Natural Diamond Dressers Natural diamond grinding wheel dressers in General Purpose, Select, and Premium grades from 1/4 ct to 3 ct carat weights, used for truing and dressing grinding wheels in production grinding operations.
• Prism Grinding Wheel Dressers Grinding wheel dressers made from synthetic diamonds laser cut into long thin prisms and vacuum-fused to steel; used for dressing CBN and ceramic grinding wheels with consistent, predictable performance.
• Diamond Hand Dressers (Cluster, Single Point, Impregnated) Hand-operated diamond dressers in cluster type, single point type, and impregnated type, used for dressing grinding wheels on bench and pedestal grinders in production and toolroom environments.
• Multi-Point Impregnated Dressers Multi-point impregnated diamond dressers with embedded diamond particles, available in multiple shapes and specifications for centerless, cylindrical, and surface grinding applications.
• Diamond Scribing Tools (Hand, Retractable, Wafer, Custom) Hand scribing tools including retractable scribes, economy hand scribes, custom series, and wafer scribers used for marking, scoring, and semiconductor wafer processing.
• Fiber Optic Scribes (Diamond, Sapphire, Carbide, Retractable) Scribes designed for the scratch-and-pull cleaving technique of optical fibers, supplied in deluxe retractable and standard models with natural diamond, sapphire, or carbide tips.
• Diamond Engravers (Drag, Rotating, Dremel, Burgess Vibro Graver) Drag engravers, rotating burnishers, Dremel diamond engraving points (#9929), and Burgess Vibro Graver diamond tips used for etching, marking, and decorative engraving in jewelry, firearms, writing instruments, and signage.
• PCD/CBN Tipped Carbide Boring Bars and Adjustable Boring Cartridges Precision boring bars and adjustable cartridges in PCD, CBN, and natural diamond, supplied in multiple shank diameters for micro-boring, facing, and precision internal machining.
• PCD/CBN/Diamond Turning Tools Turning tools in styles A, B, D, and E, available with PCD, CBN, or natural diamond cutting edges for external and internal turning operations across materials.
• PCD/CBN Grooving Tools and Inserts PCD and CBN grooving tools and inserts supplied in VDB, NG, NR, GC, GIP, and GTN style geometries for grooving standard and exotic materials with precision widths.
• PCD End Mills and Form Tools/Routers/Cutters Polycrystalline diamond end mills in various diameters and flute lengths, plus custom PCD form tools, routers, and cutters manufactured to customer specifications for difficult machining profiles.
• Microhardness Indenters (Knoop and Vickers) Knoop and Vickers diamond indenters manufactured in-house for microhardness testing machines from ATS, Buehler, Leco, Mitutoyo, Shimadzu, Wilson Tukon, and Zwick.
• Diamond Lapping Compound High-quality diamond compound used for rapid, accurate lapping, polishing, and super-finishing, available in multiple micron sizes and packaging options.
• Ice Skate Sharpening Machine Wheel Dressers Precision diamond wheel dressers engineered for commercial ice skate sharpening machines, available for SK-400, SK-600, SK-700, SK-800, and SK-900 sharpening machine models.
• Custom Diamond Tool Design and Manufacturing Custom engineering service in which J&M designs and manufactures diamond tooling parts for unusual and challenging customer applications, providing engineering design assistance and alternative design suggestions upon request.

Quantifiable outcome

• Tool life 50-100x longer than carbide in certain applications
• +1 more outcomes

Named customers2 records

Segments6 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• AGIE (Agie Charmilles)coreTechnology or IntegrationJ&M Diamond Tool selected AGIE wire-cut EDM systems for precision cutting of polycrystalline diamond. Purchased model DEM 315 in 1986 and later AC50. The high precision of the AGIE system enables cutting PCD to required tolerances without damaging the cobalt-containing substrate.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Mapal: German precision tooling specialist with PCD tooling capabilities for automotive and aerospace applications. Overlaps with J&M in superabrasive cutting tools and custom-engineered solutions but with broader European geographic footprint and larger installed base.
• Seco Tools: Global metal-cutting tool manufacturer offering CBN and PCD inserts alongside a full tooling portfolio. Competes in J&M's automotive and aerospace hard-turning niches but as part of a much larger general-purpose cutting tool business.
• Sandvik Coromant: Global leader in metal cutting tools with broad PCD/CBN insert and tooling portfolio. Overlaps with J&M on insert categories and end markets but operates at vastly larger scale with full-stack solutions across turning, milling, and drilling.
• Kyocera (Industrial Tools): Diversified manufacturer with a precision tools division producing PCD/CBN inserts and indexable tooling. Serves overlapping automotive, aerospace, and general engineering customers to J&M but as one segment of a broader ceramics and electronics conglomerate.
• Kennametal: Major industrial tooling manufacturer with PCD and CBN insert lines serving aerospace, automotive, and general engineering. Comparable at the superabrasive insert product level but with far broader product breadth, geographic reach, and capital base.
• Mitsubishi Materials: Global cutting tool manufacturer offering PCD and CBN inserts for hard turning and aluminum machining. Competes in the same automotive and aerospace applications as J&M but as part of a much wider hardmetal tooling portfolio.

Direct peers

• Continental Diamond Tool: Specialized manufacturer of diamond and CBN wheels, cutting tools, and superabrasive products serving automotive, aerospace, and industrial markets. Closely mirrors J&M's niche product mix and target vertical applications.
• Asahi Diamond Industrial: Japanese manufacturer specializing in diamond and CBN tools for grinding, cutting, and dressing applications. Closely comparable product portfolio to J&M, particularly in wheel dressers, scribers, and PCD tooling, though primarily serving Asia-Pacific markets.
• Abrasive Technology: US-based manufacturer of superabrasive grinding and cutting tools using diamond and CBN. Directly comparable to J&M in product category (PCD/CBN tooling), customer base (industrial manufacturers), and precision-engineering business model.

Others

• Element Six: De Beers subsidiary that is a leading producer of synthetic diamond and CBN superabrasive materials. Operates upstream to J&M as a key raw-material supplier for PCD blanks and CBN inserts rather than a direct tooling competitor.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 J & M Diamond Tool