Brown & Sharpe

What Brown & Sharpe does

Brown & Sharpe Screw Machine Tools, founded in 1833 and incorporated in 1868, is a U.S.-based manufacturer of precision tool holders, cutting tools, and accessories for automatic screw machines, hand screw machines, and wire feed machines. Its product line spans approximately 40 SKUs including box tools with carbide V-rests, roller-back box tools, slide tools, adjustable tool holders, floating reamer holders, knurl holders, thread roll holders, boring tools, burnishing tools, and supporting components such as bushings, blanks, and stock stops. Many of the dimensional and tooling standards used in the turned-parts industry were developed by Brown & Sharpe engineers, and the products remain compatible with Nos. 00, 0, 2, 3, and 4 automatic screw machines from multiple manufacturers.

The company operates as a division of Lester Detterbeck Enterprises, Ltd., having been acquired in 2016 alongside sibling divisions Boyar-Schultz SMT, Crafts SMT, and the LDE tool blank line. Brown & Sharpe sells directly to manufacturers and toolroom shops via phone, fax, and email through its Iron River, Michigan headquarters; orders ship F.O.B. Iron River with quote-based pricing in U.S. dollars. The go-to-market is purely transactional B2B with no public price list, no distributor channel, and no e-commerce functionality on the company website.

The business model is one-time hardware sales of durable, repeatable precision tool holders with an attached aftermarket for replacement blades, bushings, and consumables. Customers are primarily U.S. manufacturers operating automatic screw machines for production runs and toolroom applications. There is no disclosed software, API, AI, or digital component to the offering; the entire value proposition rests on mechanical precision, durability, and compatibility with industry-standard machines.

Name

Brown & Sharpe

Legal name

Brown & Sharpe Screw Machine Tools, A division of Lester Detterbeck Enterprises, Ltd.

Website

https://brown-sharpe.com

Company type

Private

Founded year

1833

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Brown & Sharpe Screw Machine Tools manufactures precision tool holders and cutting accessories for automatic screw machines, serving U.S. manufacturers and toolroom shops. Founded 1833, it now operates as a division of Lester Detterbeck Enterprises, Ltd.

Ownership category

akta.pro rank

Product category

Industrial Tool Holders and Screw Machine Tooling

NAICS

Cutting Tool and Machine Tool Accessory Manufacturing (333515)

SIC

Machine Tools, Metal Cutting Types (3541), Metalworkg Machinery & Equipment (3540)

akta.pro primary industry

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

Keywords

• Precision tool holders
• Screw machine tools
• Cutting tool holders
• Automatic screw machines
• Metalworking 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

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

Revenue model

1. Tool Holder Sales: One-time purchase of precision tool holders for automatic screw machines including roller back box tools, adjustable tool holders, boring tools, and related accessories.
2. Tool Component Sales: Replacement parts, blades, collets, bushings, and consumables for existing tool holders. Includes high speed steel blades, carbide tips, rolls, and tool blanks.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Brown & Sharpe Screw Machine Tools manufactures and sells precision tool holders, cutting tools, blades, bushings, and accessories used on automatic screw machines (Nos. 00, 0, 2, 3, and 4), hand screw machines, and wire feed machines. Products are sold directly to manufacturing companies producing turned parts, with ordering handled through the parent company Lester Detterbeck Enterprises in Iron River, Michigan. The line includes box tools, boring tools, drilling/chamfering tools, knurling tools, recessing tools, burnishing tools, reamer holders, thread roll holders, die holders, tap holders, tool posts, hollow mills, stock stops, and tool blanks.

Product overview

Brown & Sharpe Screw Machine Tools is a division of Lester Detterbeck Enterprises Ltd. manufacturing precision tool holders and cutting tools for automatic screw machines, hand screw machines, and wire feed machines. Founded in 1833 and incorporated in 1868, the company supplies the turned parts industry with a comprehensive portfolio of tool holders, cutting tools, blades, bushings, and accessories. The product line includes Box Tools with Carbide V-Rests, Extended Roll Holders, Slide Tools, Drilling and Chamfering Tools, Adjustable Tool Holders, Floating Reamer Holders, Thread Roll Holders, Die Holders, Tap Holders, Boring Tools, Knurling Tools, Recessing Tools, Burnishing Tools, and supporting accessories. These products serve Nos. 00, 0, 2, 3, and 4 automatic screw machines and are built to industry standards set by Brown & Sharpe engineers.

Differentiator

Problem solved

Functional benefit

Products and services

• Box Tools with Carbide V-Rests Roller Back Box Tools featuring blade block slides for straight-line setting, interchangeable blade blocks for left/right-hand use, and compatibility with Balance Turning Tools. Designed for automatic screw machine box tool applications.
• Extended Roll Holders
• No. 62 Slide Tools for Turrets
• Slide Tool with Interchangeable Heads
• No. 64 Drilling and Chamfering Tools
• No. 65 Adjustable Tool Holders
• No. 66 Drilling and Turning Tools
• No. 67 Floating Adjusting Reamer Holders
• Adjustable Stub Collet Holders
• Nos. 83 and 84 Thread Roll Holders
• No. 90 Releasing "Acorn" Die Holder
• No. 95 Closer for Self-Opening Die Holders
• Adjustable Floating Tap Holders
• Adjustable V-Jaw Tool Holder
• No. 111 Boring Tool Holders
• Tool Posts for Circular Tools
• Cutting-Off Tool Posts
• Tool Posts for Square Tools
• No. 163 Vertical Slide Tool Holder
• No. 165 Combination Right and Left-Hand Knee Tools
• No. 172 Combination Right and Left-Hand Adjustable Centering and Facing Tools
• Pointing Tools with Carbide "V" Back Rests
• No. 180 Pointing Tool Holders for Circular Tools
• Circular Pointing Tool Blanks
• No. 183 Adjustable Trepanning Tool
• No. 185 Adjustable Knurl Holders
• Side Knurl Holders
• Knurling Swing Tools
• No. 220 Recessing Swing Tools and No. 230 Back Rests
• No. 225 Recessing Tools
• Fixed and Adjustable Guides
• Back Rests for Turrets
• Adapters
• Combination Roughing and Finishing Adjustable Hollow Mills
• No. 373 Burnishing Tools and Rolls
• Adjustable Cam Holders
• Cam Blanks
• Revolving Stock Stops
• Stock Stops for Spring Collets
• Stock Stops for Turrets
• Cross Slide Tool Centering Gage
• Feed Tube Bushings
• Bushing Blanks
• Turning Blanks (Tool Bits) High Speed Steel

Quantifiable outcome

• Set-up time reduced as much as 50% with adjustable knurl holders

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Lester Detterbeck Enterprises Ltd.coreOthersBrown & Sharpe Screw Machine Tools is now a division of Lester Detterbeck Enterprises Ltd. The company joins Boyar-Schultz SMT, Crafts SMT, and LDE tool blank line under the parent company umbrella.

Scale indicators1 record

Recent moves2 records

Expansion highlights1 record

Broad incumbents

• OSG: Major manufacturer of taps, end mills, drills, and threading tools. Competes in the same tool holder and cutting tool categories for screw machine and turned parts production.
• Iscar: Manufacturer of precision carbide metalworking tools. Competes in turning and cutting tool categories used by Brown & Sharpe's customer base for general machining.
• Hardinge: Manufacturer of turning, milling, and grinding machines including screw machine platforms. Overlaps with Brown & Sharpe in the turned parts production customer base.
• Kennametal: Major cutting tool and tooling solutions provider. Competes with Brown & Sharpe in cutting tools and inserts used in screw machine operations, though with much broader product portfolio.
• Guhring: Manufacturer of rotary cutting tools including drills, taps, and reamers. Direct competitive overlap with Brown & Sharpe's drilling, reaming, and tapping tool holder offerings.
• Sandvik Coromant: Global leader in metal cutting tools and tooling systems. Competes with Brown & Sharpe holders and cutting tools in industrial machining, especially in CNC turning.
• Tornos: Swiss-type lathe and screw machine manufacturer. While Tornos makes the machines, its tooling ecosystem competes in the same shop-level decision-making as Brown & Sharpe's holders.

Direct peers

• Davenport Industries: Manufacturer of multiple-spindle automatic screw machines, the underlying equipment that Brown & Sharpe's tool holders outfit. Highly comparable customer base and complementary product offering.
• Crafts SMT: Sister division of Lester Detterbeck Enterprises producing screw machine tools. Shares the same parent, customer base, and product positioning in automatic screw machine tooling.
• Boyar-Schultz: Sister brand under Lester Detterbeck Enterprises, also producing screw machine tooling. Provides direct portfolio overlap and the most comparable business model, customer base, and distribution within the same parent.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/LesterDetterbeckEnterprises

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 Brown & Sharpe