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This section provides an overview for spiral reamers as well as their applications and principles. Also, please take a look at the list of 16 spiral reamer manufacturers and their company rankings. Here are the top-ranked spiral reamer companies as of March, 2025: 1.Chadwick & Trefethen, Inc., 2.SC Manufacturing Texas, LLC., 3.Proto-Cutter, Inc..
Table of Contents
A spiral reamer is a specialized cutting tool designed for drilling applications. It consists of a conical body and a spiral blade. The spiral blade cuts diagonally against the hole's wall as it rotates, making spiral reamers ideal for adjusting hole diameters with precision. During cutting, chips are efficiently removed, and the spiral design ensures precise cutting while maintaining a consistent hole diameter. Spiral reamers are commonly operated manually but can also be used with CNC machines.
Spiral reamers find diverse applications in various industries. Here are some typical uses:
The process of enlarging a hole using a spiral reamer involves several steps:
The spiral reamer's shank is attached to a tool such as a handle or drill chuck, and the cutting edge is accurately aligned with the hole's center axis.
The hole is enlarged by rotating the tool with the spiral reamer fixed in place. As the cutting edge contacts the hole's wall, the spiral reamer advances into the hole at an appropriate speed.
The spiral reamer's cutting edge rotates, generating chips. Due to the tool's design, chips do not adhere to the cutting edge and are smoothly discharged. This allows the cutting edge to expand the hole uniformly while maintaining a circular shape.
The hole is gradually enlarged as the spiral reamer continues to rotate. The cutting process is smooth and consistent, resulting in high-precision hole enlargement. Adjustments to cutting conditions and cooling may be necessary during the process.
Once the hole reaches the desired diameter, its dimensions and shape are measured to ensure they meet design requirements and objectives.
A spiral reamer consists of the following key components:
The cutting edge section features cylindrical cutting edges arranged in a spiral pattern. This arrangement facilitates efficient cutting and chip removal while reducing edge wear.
The shank connects the spiral reamer to a tool like a handle or drill chuck. It enables the rotation of the cutting-edge portion.
The blade section, situated between the cutting edge and shank, is cylindrical and performs the cutting action within the hole.
Spiral reamers come in various types, each suited to specific applications:
This type has a straight shank and a spiral cutting portion. It is used with straight-shank drill chucks or collet chucks.
Taper shank spiral reamers feature a tapered shank and are suitable for use with machines like lathes.
Short reamers have a shorter cutting section and are ideal for machining short holes, offering ease of control in confined spaces.
Long reamers are used for drilling deep holes with their extended cutting section, reaching into the workpiece.
Hand reamers are manually operated and are valuable for precision work and finishing.
Machine reamers are designed for use with automated machining equipment, ensuring efficient and accurate machining.
This type combines features of a ball end mill and a reamer, featuring a spherical cutting portion suitable for machining curved surfaces and circular holes.
Cutting Capacity
The spiral reamer's advantage is its high-cutting ability. Its special blade spiral structure lowers cutting resistance, improves cutting speed, and also facilitates the discharge of chips.
Rigidity and Stability
Spiral reamers are strong and rigid tools. Even under high cutting loads, vibration and distortion are minimized, enabling high-precision hole drilling.
Finish Quality
Another advantage of spiral reamers is the high quality of hole finishing. Good hole diameter accuracy and uniform surface finish ensure that the required hole dimensions and surface conditions can be met.
Long Life
Spiral reamers are durable and have a long service life. Especially when they are coated with high-quality hard metal or coating, wear and deterioration of cutting ability are reduced. Therefore, high performance can be maintained even when working continuously for long hours or processing hard materials.
Wide Range of Applications
Spiral reamers are used in a wide variety of applications. For example, they are used for drilling holes in metals and plastics, drilling precision positioning holes, and drilling holes with special geometries. Their versatility and flexibility make them convenient for application in a wide range of industries and manufacturing processes.
Expensive
Spiral reamers are relatively expensive due to the need for high-quality materials and special designs. In particular, larger sizes and special specifications are more expensive, so the initial investment and replacement cost may be higher than for other reamers.
Restrictions on Use
Because spiral reamers are optimized for a specific material or hole size range, optimal cutting conditions and performance may be difficult to obtain when used with different materials or hole sizes. In addition, machining holes with special geometries or deep holes requires special ingenuity and equipment.
Chip Management
Spiral reamers generate a large amount of chips during cutting. If chips are not properly disposed of, the working environment and the cutting ability of the machine may be adversely affected. It is necessary to manage chips by cleaning regularly and using appropriate cutting fluid.
The cutting performance of spiral reamers may be improved by the shape and coating of the cutting edge and the setting of the helix angle. Optimal cutting conditions, especially for hard materials and deep hole drilling, will result in high cutting performance.
Spiral reamers are used as tools for specific applications by changing their shapes and coatings. For example, by making the tip of a spiral reamer spherical, a ball end mill reamer can be used for spherical machining.
Spiral reamers can be used in combination with automatic reamers. Since automatic processing equipment can accurately control the machining dimensions and position, it is a good match for precision tools such as spiral reamers, and the combination of both can improve machining accuracy and work efficiency.
*Including some distributors, etc.
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Chadwick & Trefethen, Inc. was founded in 1892 in Portsmouth, New Hampshire, US, as a manufacturer of reamers. The company offers motorcycle reamers, spiral king bolts, model MB, model X aligning, and standard ball joint taper reamers. Its products are used in electrical, industrial, special, and automotive applications. The company's reamers are essential in increasing existing holes with accurate fit and smooth finish. The company also provides customer services such as reamer modification, repair, and technical support.
SC Manufacturing Texas LLC, which was established in 1996 and located in Joshua, Texas, is a manufacturer of cutting tools for the aerospace and construction industries. The company produces standard and custom piloted reamers, piloted core drills, threaded shank drills, step drills, and piloted double margin drills. These products that have applications in the aerospace, manufacturing, and automobile sectors. They also offer carbide tool regrinding services including blasting, polishing, re-sharpening, and extension welding, and they respond to AOG orders with 24-hour service.
Freer Tool & Supply, founded in Clinton Township, MI is a manufacturer and distributor of tooling components such as clamps & clamping kits, toggle clamps, jig, and fixture kits. The company's product portfolio includes tooling balls, tapped hole location gages, tooling columns and plates, and hoist rings. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building. The company also provides services including national distribution, product selection, installation, preventative maintenance, troubleshooting, repair and customer service.
Rock River Tool, Inc., established in 1986, is an American manufacturer and distributor based in Bradenton, Florida, specializing in carbide tipped and solid carbide cutting tools. The company’s product offerings include a range of tools, including various drills such as aircraft extension and stub length drills. It also provides a selection of reamers, catering to general purposes and steel cutting needs, as well as various types of centers. Additionally, the company offers an array of counterbores and countersinks, along with single point tools for steel and non-ferrous metals. Notably, for milling operations, the company offers arbor and shank style milling cutters.
Great Lakes Industrial Supply Co. (Great Lakes) is a family business originally founded in 1954, operating out of Dearborn Heights, Michigan. Great Lakes is a distributor for industrial and contracting supplies including cutting tools, mechanic tools, power tools, and safety items. Some of the types of cutting tools Great Lakes offers include drills such as jobbers and roto hammers, taps, reamers, and dies. Mechanic tools include rachets, drivers, and sockets. Power tools include offerings from companies such as Makita and Milwaukee.
CHANGZHOU NISUN TOOLS MANUFACTURE CO.,LTD., founded in 2015 and based in Changzhou, China, is a manufacturer of a diverse range of cutting tools. The company's product portfolio includes solid carbide end mills, drills, reamers, and custom-made tools. These tools are utilized for superior precision engineering, rugged hardness, and wear resistance, making them indispensable for various machining operations. These tools find multiple applications across industries such as aerospace, automotive, medical device manufacturing, and general engineering to support machining efficiency and quick turnaround.
Supal Precision Tools Co., Ltd, established in 2016 and headquartered in Jiangsu, China, is a manufacturer of solid carbide tools. The company provides a broad selection of precision-engineered cutting tools, such as end mills, drills, reamers, and specially designed tools. The superior hardness, wear resiliency, and precision of these solid carbide tools make them suitable for an array of machining applications. Apart from offering modern equipment that assists in machining productivity and quality, these tools find use in an assortment of industries, including aerospace, automotive, medical device manufacture, and general engineering.
Zhuzhou Cemented Carbide Cutting Tools Co., Ltd., founded in 2002, stands as an eminent manufacturer and supplier of advanced carbide cutting tools from China. The company excels in crafting an extensive array of cutting implements, including inserts, end mills, and drills, which find applications across diverse industrial sectors. With an unwavering devotion to precision and innovation, Zhuzhou Cemented Carbide Cutting Tools is resolute in equipping industries like manufacturing, aerospace, and automotive with tools that amplify productivity and elevate quality standards. Their all-encompassing product spectrum caters adeptly to professionals seeking efficient cutting solutions for intricate machining operations.
DIC TOOLS, established in Patiala, Punjab in 2012 is a manufacturer of cutting tools which include HSS Cutting Tools and Gear Cutting Tools. Their product portfolio includes solid carbide end mills used for precise milling, high-speed steel (HSS) and HSS-Co drills, high-speed steel (HSS) and HSS-Co drills used in turning and milling operations, and boring bars and tool holders for hole machining. The company serves industries such as Electronics and Semiconductors, Metalworking and Fabrication and Precision Engineering.
Eikosha Co. Ltd., founded in 1950 and headquartered in Ota-ku, Tokyo, is a manufacturer of precision cutting tools. The company specializes in producing reamers, cutters, and end mills with a portfolio of over 40,000 standard tools. It provides customized tool services, creating cutting tools from CAD prints or sketches to meet specific client needs. Its capabilities also include crafting tools from carbide and HSS, ensuring precision and repeatability for every design. Its product lines, such as the Eikosha series, cater to various industrial machining applications. The company exports globally, reaching markets across Europe, Asia, and the Americas.
MORSE Cutting Tools, founded in Novi, Michigan, in 1864 is a manufacturer of cutting tools, superior endmills and drills. The company's product portfolio includes indexable inserts, including carbide, ceramic, and CBN inserts, used in turning, milling, and threading operations, solid carbide end mills, and boring bars and toolholders. The company serves markets including automotive, aerospace, medical, glass mold, and plastics. The company provides services including national distribution, product selection, custom tooling services, repair and customer service.
Proto-cutter Inc. was established in 1991 and is based in Freeport, Illinois, as a manufacturer and supplier of precision cutting tools. Their product portfolio includes reamers, end mills, indexable drills, floating holders, port contour cutters, and custom precision tools. The company also provides reconditioning services to restore original sharpened design features for long-lasting efficiency of the cutting tools. The company provides cutting tool devices manufactured with the latest advanced technology for solving industrial problems.
Joseph Fazzio, Inc. was established in 1965 as a family-owned business and is based in Glassboro, New Jersey. Joseph Fazzio is both a distributor and servicer of industrial tools, machinery, and materials. The company's product offerings include building materials, fasteners, fleet products, hydraulics and mechanical components, and tool storage. Additional types of products include sheet metals, heavy machinery, and specific bolt, nut, screw, and spacer selections. The company's surplus division also offers a line of used products for sale across product lines.
Amtek Tool and Supply, Inc. based in Madison Heights, MI. Amtetk is an online super market for tools, supplies, and other hardware for individual, professional, and corporate customers. Product types include milling, threading, and turning devices, tooling systems, saws, broaching and deburring bits, cutting tool blanks and spares, abrasives, power tools, hand tools, safety equipment, measuring devices, lubrication, sanitation supplies, storage, pneumatics, shipping supplies, transmissions, and various other hardware and shipping supplies. Amtek’s online storefront offers precise filters to help find exact products to meet customer needs.
Ranking as of March 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Chadwick & Trefethen, Inc. |
16.7%
|
| 2 | SC Manufacturing Texas, LLC. |
16.7%
|
| 3 | Proto-Cutter, Inc. |
12.5%
|
| 4 | CHANGZHOU NISUN TOOLS MANUFACTURE CO.,LTD. |
8.3%
|
| 5 | Freer Tool & Supply |
8.3%
|
| 6 | Great Lakes Industrial Supply Co., Inc. |
8.3%
|
| 7 | Supal (Changzhou) Precision Tools Co., Ltd |
4.2%
|
| 8 | Zhuzhou Cemented Carbide Cutting Tools Co.,Ltd |
4.2%
|
| 9 | Joseph Fazzio, Inc. |
4.2%
|
| 10 | Haggard & Stocking Associates, Inc. |
4.2%
|
Derivation Method
The ranking is calculated based on the click share within the spiral reamer page as of March 2025. 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
|
5 | 50.0% |
|
China
|
3 | 30.0% |
|
India
|
1 | 10.0% |
|
Japan
|
1 | 10.0% |
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