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Reamer

Your Professional Reamer Supplier

Our goal is to become your true partner in the field of center drill in China. Zhuzuan (Chongqing) CNC Tool Co., Ltd. is a professional enterprise engaged in the research and development, production, and sales of CNC cutting tools. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards.The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

Why Choose Us

Product application:

Our company mainly produces milling cutters, drills, reamers, boring cutters, cutting tools, etc. Our products are widely used in automobile, aviation, aerospace, mold, electronics, medical equipment and other industries.

Quality control:

Our company has passed the ISO9001 quality management system. From product design to delivery, each process is strictly carried out in accordance with the requirements of the quality management system to ensure product quality.

Our customization:

Our company can confirm drawings and communicate in advance about tool production design according to your special requirements or OEM & ODM tools, and can also provide a full set of tool processing solutions according to your various processing requirements.

Our services:

In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

Advantages of Reamer

Enhanced rigidity: The helical flute design of reamers provides increased rigidity compared to straight flute reamers. This rigidity helps maintain the tool's stability during the cutting process, resulting in improved accuracy and surface finish.

Reduced chatter: Chatter, or vibration during machining, can negatively impact the quality of the machined surface and accelerate tool wear. Reamers are less prone to chatter due to their helical flute design, which helps dampen vibration and maintain smooth cutting action.

Uniform cutting action: The helical flute geometry of reamers ensures a more uniform cutting action across the cutting edge. This results in consistent material removal rates and improved surface finish throughout the reaming process.

Suitability for high-speed machining: Reamers are well-suited for high-speed machining operations due to their efficient chip evacuation and enhanced rigidity. They can withstand higher cutting speeds and feeds, resulting in shorter machining cycle times and increased productivity.

Versatility: Reamers are versatile tools capable of reaming a wide range of materials, including aluminum, cast iron, steels, and alloys. They are commonly used in various machining applications, including aerospace, automotive, and general engineering.

Specification of Reamer

Product Name	Reamer
Drill diameter range	4.0mm to 20.0mm
Material	Tungsten carbide
Flute type	Right or Left helical flute

Types of Reamer

Spiral-fluted reamers: Spiral-fluted reamers are special-purpose reamers that are ideal for hard-chipping materials like stainless steel. Due to their helical flutes, the cutting forces are well-distributed over the hole reamer, allowing them to cut through hard materials.

Straight-fluted reamers: Straight-fluted reamers, as the name suggests, have flutes that are parallel to the central axis of the reamer bit. They are suitable for materials that do not produce a lot of chips, such as brass and cast iron.

Taper pin reamers: Taper pin reamers feature a tapered body. This means that the diameter of the metal reamer decreases as one moves from the root to the tip along the central axis. This unconventional shape is perfect when the hole accommodates components like taper pins.

Shell reamers: Shell reamers come as a sleeve with cutting flutes on the outside. The sleeve, or ‘shell’, is fitted onto a reaming arbor to perform the reaming operation. A usual shell reamer has multiple flutes spanning the entire length of its body and that can be straight or spiral, depending upon the application.

Hand reamers: A hand reamer is designed for manual reaming, as opposed to a machine reamer, which is used on machine tools. Its design usually features helical flutes to facilitate chip evacuation and distribute cutting forces.

Floating reamers: Floating reaming is more of a separate reaming setup than a reamer bit. So, these floating holders are compatible with all reamer types. The special thing about it is the floating reamer holder, which isolates the machine tool drive from the tool through an independent bearing setup.

Other reamer types: The list of types of reamer above includes the most common reaming tools one can find inside a machine shop. On top of these, there are multiple other reamer types for specialized reaming operations.

Reamer Geometries

Left-hand spiral:

Left-hand spiral reamers are designed for reaming through holes, the spirals help push the swarf out through the holes to prevent interference between the cutting flutes and material, left-hand spirals cope well with interrupted cuts like cross holes or keyways.

Right-hand spiral:

Right-hand spiral reamers are designed to cut blind holes as the flutes will draw the swarf out of the pre-drilled hole, this prevents the swarf from being packed into the bottom of the blind hole and prevent the reamer from becoming damaged. Right-hand spirals are also effective when coming in contact with cross holes or keyways.

Straight flute:

Straight flute reamers are the most common type of reamer. They are a good choice for general-purpose reaming and will perform well in both blind and through holes.

Application of Reamer

Precision hole sizing:

Reamers are commonly used for creating precise holes with a high degree of accuracy and surface finish.

Hole finishing:

Reamers are also used for improving the surface finish of a pre-drilled hole, ensuring smooth and straight walls.

Removing burrs:

Reamers can be used for removing burrs or sharp edges left after drilling or cutting operations.

Production Process of Reamer

Reaming is a finishing operation that follows drilling or boring. As one of the CNC machining processes, it involves the use of a multi-fluted cutting tool called a reamer that removes a small amount of material from the hole surface to achieve the desired dimension and finish. The reamer has several cutting edges, and each edge removes a small amount of material. The process is repeated until the desired diameter and surface finish are achieved. The reaming process is essential to ensure the hole is round, straight, and has a smooth surface finish.

Packing and Shipping of Reamer

Packing	Plastic Box
Shipping	Shipped by road, sea, rail

FAQ

Q: How is reaming different from drilling and boring?

A: Reaming is a finishing process that is used to enlarge holes with high accuracy and create a smooth surface finish. They remove a maximum of 0.005” of material. Drilling creates a new hole altogether at a place where there was no hole previously.

Q: What materials can reamers be used for?

A: Reamers are generally compatible with all metals ranging from soft materials like brass and iron alloys to hard materials like high-carbon steel and stainless steel.

Q: How to choose the right ream size for a job?

A: The ream size should be 2-4% smaller than the final hole size. Thus, if the job specifies a 10 mm hole, the correct ream size would be in the range of 9.6-9.8 mm.

Q: What are the applications of the reaming process?

A: The reaming process is widely used in manufacturing to improve the precision, surface quality, and shape accuracy of workpiece holes. It is particularly suitable for cases where rough machining needs further quality improvement.

Q: Is reaming difficult?

A: The reaming process itself is not complex, but achieving high-precision machining results requires operator skills and experience. Proper control of cutting parameters, selection of suitable cutting fluids, and ensuring tool sharpness and stability are essential.

Q: Can a reamer straighten a hole?

A: A reamer can correct slight hole misalignments to some extent, depending on factors like the degree of misalignment, reamer size and shape, and machining conditions.

Q: Which materials are suitable for reaming?

A: The reaming process is suitable for various materials, including metals (steel, copper, aluminum), plastics, and composites. Different materials require different reamer materials, cutting parameters, and cutting fluids.

Q: What are reaming and boring?

A: A precision hole machining method using a reamer to make fine cuts on the hole wall to improve size accuracy, surface quality, and shape accuracy. It is suitable for further improving hole quality after rough machining.

Q: Why does the hole wall become rough during reaming?

A: Causes of rough hole walls include improper cutting parameter settings (e.G., excessive cutting speed or feed rate), insufficient or ineffective cutting fluid, tool wear, inappropriate pre-drilled hole size, and workpiece material issues (e.G., impurities, uneven hardness).

Q: How to determine if a reamer needs replacement?

A: Determine reamer replacement by checking for significant wear, chipping, or breakage, reduced hole size accuracy and surface quality, and by estimating the reamer's recommended lifespan based on usage.

We're professional reamer manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale reamer made in China here and get quotation from our factory. Good service and low price are available.

Reamer, Straight Flute Reamer, Spiral Flute Reamer