A collet for your CNC is a key machine tool for your CNC spindle. It allows you to carry out a wide range of applications with just one machine by letting you switch tools easily. Collets are a type of clamp and are designed to hold a tool or workpiece in place to provide excellent precision. These act as the connector between the machine and the bit you’re using and use spring steel with a cylindrical inner surface and a conical outer surface. The tool fits against the inner surface, and the outer surface fits into the machine, which is tightened with an external nut to contract the inner surface around the tool for a secure and constant self-centralising pressure.
Collets are known to be a superior type of chuck for machine tools because they’re the only ones that constantly and reliably offer a strong clamping force. These give you a self-centring effect with a very low run-out to resist loosening and still allow you to swap tools quickly. While other types of chuck let you have one clamp to fit a wide range of tool sizes, collets are made for specific tool sizes or a smaller range of sizes, which is why they are provided in singles for one tool or sets for you to have a collet for every tool.
Our Range ER Collets
Here at Rennie Tool Company, we stock a wide range of ER collets for various tools. We offer single collets in various sizes and even sets in different sizes to help you get exactly what you need for your tools and applications. Our collets are ER and offer sizes from as little as ER11 to as large as ER40 for you to easily find the perfect collet for your machine.
Each collet for your CNC and other machines suzh as lathes is made to a high standard to give you quality ER spring collets you can rely on. These are perfect for holding a variety of tools, especially endmills, router cutters and drills, and help you use only one machine for a range of applications and projects. ER collets are designed to perform well when holding round-section workpieces with light cutting forces, thanks to their withstanding axial loads. You can find collets in various ER standards from ER11 to ER40, with the sets boasting a range of different sizes within them for multiple applications. On top of this, we also sell single collet clamping nuts for you to create a secure, tight fit for ultimate precision in everything you do.
ER11 Collet
In our range, we offer individual ER11 collets to suit your needs. These are available in different sizes for you to find correct size for your needs. We offer 9 sizes that range from 2mm to 7mm, and include 1/8” and 1/4”, so you can easily buy an individual ER11 collet in the exact size you need. This type of collet is ideal for micro-cutting, jewellery engraving and even dental part production because it offers a small size for accurate work.
ER16 Collet
We also stock ER16 collets in a range of different sizes to give you exactly what you need for your application. These come in 12 sizes that offer 2mm pieces all the way to 10mm, as well as 1/8”, 1/4” and 3/8”. Having access to the size your application requires allows you to secure your tools firmly and get precise, flawless results.
ER20 Collet
You can also find ER20 collets in various sizes to suit your application. These come in 14 different sizes that offer 1/8”, 1/4” and 3/8”, as well as sizes ranging from 2mm to 12mm. This type of collet is ideal for general-purpose machining applications that require a specific tool diameter for high precision and a quality finish.
ER25 Collet
Our range also offers an ER25 collet for your machining needs to carry out every application with accuracy. You can get the exact size you need in this collet as we provide them in sizes from 2mm to 16mm, as well as 1/8”, 1/4", 3/8” and 1/2”. This collet is very useful for applications that need high precision when machining and can be used for milling, routing, tapping and drilling.
ER32 Collet
We also stock ER32 collets to suit your project and applications in multiple sizes. You can find 1/8”, 1/4" and 3/8” sizes alongside sizes ranging from as small as 2mm all the way to sizes as large as 20mm. Getting the right size collet in this standard allows you to switch tools easily for different applications in more demanding projects. This type of collet is perfect for CNC machining and manual machining applications and is highly versatile and extremely reliable.
ER40 Collet
If you need an ER40 collet for your project, we also offer this in our collection. These come in sizes ranging from 2mm all the way to 32mm to suit every application. What’s more is that we also offer some half sizes in this type of collet, including 2.5mm, 3.5mm and 4.5mm, so you can achieve brilliant accuracy and a flawless result. This type of collet is the best for heavy-duty machining as it can handle impressive torques that exceed 160-180Nm!
Collet Sets
When it comes to collets,, we know that many times you require more than just one size, no matter which collet you need. Many projects include a wide variety of applications that need various collet sizes for the best results. This is why we also offer collet sets in our collection that provide you with multiple sizes in each type, so you don’t have to buy a lot individually. Each collet standard gives you a different quantity of collets, with the ER11 set offering 9 pieces, all the way to the ER40 set that offers 24 pieces for the greatest versatility. These sets help you save money on individual pieces and allow you to switch between applications quickly during any project!
Get The Perfect Collet For Your Needs
Get the perfect collet for your CNC from our collection to suit your every need and application. From ER11 to ER40, and even collet sets, you can easily have the exact collet you need for your project to help provide you with high-quality, precise results. Each collet is made from high-quality spring steel and can handle tolerances of less than 0.008mm to suit your needs, allowing you to always machine the most accurate and flawless finishes.
Buy our collets now and get same day despatch Monday-Friday when you order before 3 pm! Call our team today on 0161 4779577 to discuss your needs and to place your order.
