Supermill

What Supermill does

Supermill LLC is a US-based manufacturer of solid carbide endmills operating from a single headquarters and production facility at 56 Willow Brook Drive, Berlin, Connecticut. Founded in 1990 as Primary Cutter Grinding, the company originally provided regrind and recondition services for cutting tools used in aerospace, defense, and firearm manufacturing. It subsequently pivoted to designing and manufacturing its own high-performance solid carbide endmills under the SUPERMILL brand, applying in-house PVD (Physical Vapor Deposition) coatings and proprietary geometries optimized for difficult-to-machine aerospace alloys, nickel-based alloys, and ferrous materials. The product portfolio is organized into four performance tiers — Extreme, Ultra, High, and All Purpose — and spans more than a dozen specialty series (including XPV, XPVS, SM3F through SM7F, TC5F, AL3F, SAP, and multiple XP variants). Supercategory breadth on the webshop covers ballnose, square/corner radius, and engraving/chamfer tools.

The company generates revenue through two streams: hardware sales of its carbide endmills and professional services (regrind/recondition). It operates a hybrid go-to-market combining a nationwide US network of authorized distributors and end-users with a direct e-commerce platform (webshop.supermill.com) that supports real-time pricing, stock visibility, order history, and shipment tracking. Pricing is quote-based with no public list rates. Customer targeting spans aerospace and defense as primary verticals, with secondary reach into automotive, medical, oil and gas, heavy equipment, and firearms. The company is a subsidiary of the IMC Group (International Metalworking Companies), a diversified metalworking conglomerate that provides manufacturing technology support and strategic guidance. No venture capital or PE funding is evidenced; Supermill is a privately-held LLC, US-domiciled, with no public listing.

Name

Supermill

Legal name

Supermill LLC

Website

https://supermill.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Supermill LLC is a Connecticut-based manufacturer of solid carbide endmills with proprietary PVD coatings and specialized geometries, serving aerospace, defense, and industrial machining customers through a nationwide US distributor network and direct e-commerce platform, operating as a subsidiary of the IMC Group.

Ownership category

akta.pro rank

Product category

Industrial Cutting Tools

NAICS

Cutting Tool and Machine Tool Accessory Manufacturing (333515)

SIC

Metalworkg Machinery & Equipment (3540)

akta.pro primary industry

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

akta.pro secondary industry

Grinding, Honing & Superfinishing Equipment (IMAHADAE)

Keywords

• Carbide endmill manufacturing
• Precision cutting tools
• PVD tool coatings
• Metalworking products
• Industrial machining tools

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

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. Carbide Endmill Sales: Sale of high-performance solid carbide endmills across various performance tiers (Extreme, Ultra, High, All Purpose) to distributors and end-users.
2. Regrind and Recondition Services: Regrind and recondition services for cutting tools for the aerospace, defense, and firearm manufacturing industries, as originally founded.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Supermill manufactures and sells high-performance solid carbide endmills across four performance tiers (Extreme, Ultra, High, All Purpose) designed for precision machining of aerospace alloys, nickel-based alloys, and ferrous materials, featuring in-house PVD tool coatings and proprietary geometries. The company also provides regrind and recondition services for cutting tools originally serving aerospace, defense, and firearms manufacturers, and distributes through a nationwide authorized distributor network and a direct e-commerce webshop.

Product overview

Supermill offers a comprehensive portfolio of high-performance solid carbide endmills organized into four main performance tiers: Extreme Performance (for aerospace alloys), Ultra Performance (featuring specialized geometries and in-house PVD tool coatings for maximum productivity), High Performance (for slotting and heavy profiling of ferrous materials and nickel-based alloys), and All Purpose (for universal machining). The product lineup includes specialized series such as XPV, XPVS, SM3F-SM7F, TC5F, AL3F, SAP, and XP variants (including XP-NB, MXP, XPR, XPB models). Products are categorized into Ballnose End Mills, Square & Corner Radius End Mills, and Engraving & Chamfer Tools. The company also operates an e-commerce platform enabling real-time pricing, ordering, and account management. Supermill is a member of the IMC Group (International Metalworking Companies).

Differentiator

Problem solved

Functional benefit

Products and services

• Extreme Performance Carbide Endmill Carbide endmill engineered for extreme performance when machining difficult-to-machine aerospace alloys; intended for aerospace manufacturers requiring reliable cutting of challenging materials.
• Ultra Performance Carbide Endmill High-performance carbide endmill with specialized geometries and proprietary in-house PVD coatings designed for maximum productivity when machining difficult workpiece materials.
• High Performance Carbide Endmill Carbide endmill designed for high-performance slotting and heavy profiling of ferrous materials and nickel-based alloys.
• All Purpose Carbide Endmill Carbide endmill for universal, all-purpose machining applications in ferrous materials, suited for general production use.
• Regrind and Recondition Services Professional regrind and recondition (re-sharpening) services for cutting tools, originally the founding offering of the company and continuing to serve aerospace, defense, and firearms manufacturers.
• Ballnose End Mills Ballnose end mills offered through the webshop for contour machining and radius cutting applications.
• Square & Corner Radius End Mills Square and corner radius end mills offered through the webshop for slotting, profiling, and general machining.
• Engraving & Chamfer Tools Engraving and chamfer tools offered through the webshop for edge preparation and marking applications.

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• IMC Group (International Metalworking Companies)coreStrategic or Co-development PartnerSupermill joined the IMC Group (International Metalworking Companies), a partnership that has provided enhanced support and guidance, advancing SUPERMILL's manufacturing technologies and maintaining top-tier customer service and technical support. This partnership is described as a significant milestone accelerating Supermill's growth in the solid carbide endmill market.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/supermill1
• LinkedInlinkedin.com/company/supermill-llc-

Revenue estimate

Valuation estimate

Number of profiles

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 Supermill