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This section provides an overview for deep hole drilling machines as well as their applications and principles. Also, please take a look at the list of 8 deep hole drilling machine manufacturers and their company rankings. Here are the top-ranked deep hole drilling machine companies as of March, 2026: 1.HTT USA Inc., 2.Kays Engineering, Inc., 3.TACCHI GIACOMO E FIGLI S.p.A..
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A Deep Hole Drilling Machine is a specialized machine tool crafted for precision drilling, particularly effective in creating long, deep holes. This type of machinery is an integral part of the turning process and plays a crucial role in metalworking and the manufacture of precision machinery parts.
The machine operates using a rotating drill bit, designed to produce straight, accurately placed holes in a workpiece. It is renowned for its precision and efficiency, making it an invaluable asset in mass production and for machining holes with complex shapes. To enhance the drilling process and ensure precision, the machine uses a coolant to reduce friction between the tool and the workpiece.
For optimal results, accurate settings and programming are essential when operating a Deep Hole Drilling Machine. Additionally, proper management of the coolant and careful selection of the right tools are key factors in ensuring efficient and precise drilling operations.
*Including some distributors, etc.
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Kays Engineering, Inc. is a manufacturer of drilling machines based in Marshall, Missouri, USA. Established in 1980, the company specializes in producing gun drilling, BTA (Boring and Trepanning Association), and STS (single tube system) drilling machines. These machines, including the DeHoff, Eldorado, and TechniDrill brands, are crafted to exacting standards, ensuring precision in deep-hole drilling applications. The company's deep-hole drilling machines are found in various industries including aerospace, automotive, energy, and medical sectors.
HTT USA Inc., established in 1997 and headquartered in Grayslake, USA, is a manufacturer of deep-hole drilling machines. The company's products include horizontal honing, deep hole drilling, and BTA deep hole boring machines. Its horizontal honing machines are used for refining cylinder bores in engines, and deep hole drilling machines for precision drilling of engine valves in automotive manufacturing. It also offers solutions for gear shafts, fuel injection parts, and mold making for the aerospace, automotive, and medical instruments industries. The company also provides technical consulting, machine repair, and upgrade services, ensuring tailored configurations to meet specific customer needs.
Sunnen Products Company, founded in 1924, is an American manufacturer and supplier headquartered in St. Louis, Missouri, specializing in of high-precision and bore sizing machines, tools, and abrasives. Joe Sunnen, founder of the company, invented the first manual cylinder hone in 1928. Over the years, Sunnen has developed industrial honing machines, tools, and abrasives with bore sizing and finishing systems, lapping machines, deep hole drilling machines and tools, bore gaging and roller burnishing systems. These products find applications in various industries, such as honing solutions in the automotive sector, as well as a line of machines, tools, and abrasives for energy drilling.
UNISIG, founded in 1981 and headquartered in Menomonee Falls, Wisconsin, United States, is a manufacturer of precision deep-drilling machines and accessories and a provider of related services. The company specializes in deep hole drilling systems with products that include gun drilling machines for medical implant manufacturing, a series of rifling machines that are available in robot-ready or full automation models, and combined milling and drilling centers. It also offers specialized CNC center tooling accessories and a range of lubricants. The company's after-sales support includes the supply of maintenance programs, real-time remote monitoring and diagnostics, and the supply of spare parts.
Ranking as of March 2026
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | HTT USA Inc. |
12.9%
|
| 2 | Kays Engineering, Inc. |
12.3%
|
| 3 | TACCHI GIACOMO E FIGLI S.p.A. |
9.5%
|
| 4 | POREBA Machine Tools Ltd. |
9.5%
|
| 5 | Precihole Machine Tools |
8.8%
|
| 6 | Tarus Products Inc |
8.8%
|
| 7 | Sunnen Products Company |
8.8%
|
| 8 | I.M.S.A. S.R.L |
8.5%
|
| 9 | WIDMA |
7.6%
|
| 10 | SHUANGLI |
6.9%
|
Derivation Method
The ranking is calculated based on the click share within the deep hole drilling machine page as of March 2026. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
3 | 100.0% |
