A Milling Collet is a precision tool-holding collet used to securely clamp end mills, slot drills, reamers, and cutters in milling machines and CNC machining centers. It ensures accurate centering, strong gripping force, and vibration-free cutting for improved surface finish and extended tool life.
A Milling Collet is a precision tool-holding collet used to clamp end mills, slot drills, reamers, and cutters in milling machines and CNC machining centers.
It provides accurate centering, strong grip, and vibration-free cutting, which is essential for good surface finish and tool life.
🔹 KEY FEATURES
High concentricity for accurate milling
Strong gripping force (anti-slip)
Suitable for high-speed operations
Easy tool change
Long service life with hardened & ground finish
📐 MILLING COLLET – COMMON TYPES & DIMENSIONS
🔹 ER Type Milling Collet (Most Common)
|
ER Size |
Tool Holding Range (mm) |
Outer Dia (D) mm |
Length (L) mm |
|
E11 |
1 – 7 |
11 |
18 |
|
E16 |
1 – 10 |
16 |
27.5 |
|
E20 |
1 – 13 |
20 |
31.5 |
|
E25 |
2 – 16 |
25 |
34 |
|
E32 |
2 – 20 |
32 |
40 |
|
E40 |
3 – 26 |
40 |
46 |
📌 Each ER collet clamps within ±0.5 mm of nominal size.
🧩 CONSTRUCTION DETAILS
Material: EN47 / Spring Steel / Alloy Steel
Heat Treatment: Hardened & tempered
Hardness: 45 – 48 HRC
Slots: Precision slits for uniform clamping
Finish: ID & OD precision ground
⚙️ TYPES OF MILLING COLLETS
ER milling collet
Solid (fixed bore) milling collet
Weldon-type end mill collet
Carbide-lined milling collet
Special milling collet (as per machine)
🏭 APPLICATIONS
Vertical & horizontal milling machines
CNC VMC / HMC
Slotting, profiling & contouring
Tool rooms & production machining
End mill & cutter holding
📦 SUPPLY OPTIONS
Metric & inch sizes
Standard & precision grade
Hardened or soft (machinable)
Custom milling collets as per drawing
Export-quality packaging available
Have questions about a specific product? Our team will help you find the right option for your needs — ensuring compatibility, quality, and value.
A Quick Change Rubber Collet is a soft, flexible workholding collet designed for rapid replacement and non-marking grip of delicate, finished, or thin-wall components. It is ideal for automation lines, inspection stations, grinding, polishing, and light machining applications where frequent size changes, speed, and surface protection are essential.
A Friction Collet is a specialized workholding collet that grips components using high-friction contact surfaces rather than relying only on elastic spring force. It is ideal for smooth, hardened, plated, or polished components that tend to slip in standard steel collets, and is widely used in CNC turning, grinding, automation, and mass production applications.
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An F Series Collet is a heavy-duty workholding collet used on manual lathes, CNC lathes, and capstan or turret lathes. It provides strong gripping force, high rigidity, and reliable accuracy for medium to large diameter components, making it an ideal replacement for jaw chucks to achieve better precision and faster cycle times.
A W-Series Collet is a high-precision, draw-in type workholding collet commonly used on cylindrical grinders, tool and cutter grinding machines, milling fixtures, and inspection setups. It offers excellent concentricity, high rigidity, and repeatable accuracy, making it ideal for precision grinding and finishing operations.