A Multi Bore Collet is a special-purpose workholding collet designed with two or more bores to clamp multiple identical components simultaneously in a single cycle. Commonly used in CNC lathes, SPM machines, transfer lines, and automation systems, it increases productivity, reduces cycle time, and is ideal for high-volume production of small components.
A Multi Bore Collet is a special-purpose Workholding collet designed with two or more bores to hold multiple components simultaneously in a single clamping cycle.
It is widely used in CNC lathes, SPM machines, transfer lines, and automation setups to increase productivity and reduce cycle time.
Multi bore collets are ideal for small, identical components produced in high volumes.
Key Features
🔄 Holds multiple parts at one time
⚡ Higher productivity & reduced cycle time
🎯 Uniform gripping on all components
đź”’ Secure clamping with consistent accuracy
🤖 Suitable for automation & mass production
🧩 Custom bore layout as per job requirement
Multi Bore Collet – Dimension Details (Typical)
|
Parameter |
Custom Range |
|
Number of Bores |
2 to 12 (or more) |
|
Individual Bore Size |
3 – 40 mm |
|
Bore Pitch / Spacing |
As per component |
|
Outer Diameter (OD) |
As per chuck |
|
Overall Length (L) |
As per machine |
|
Grip Type |
External / Internal |
|
Accuracy (TIR) |
≤ 0.02 mm |
|
Material |
EN47 / Alloy Steel / Special |
đź“Ś All dimensions are manufactured as per component drawing and machine specification.
Construction Details
Material: Alloy Steel
Heat Treatment: Hardened & tempered
Finish: Precision ground bores
Design: Optimized slit & taper for equal clamping force
Options: Rubber lining / carbide lining for special jobs
Types of Multi Bore Collets
External gripping multi bore collet
Internal expanding multi bore collet
Step-type multi bore collet
Rubber lined multi bore collet
Custom profile multi bore collet
Applications
CNC turning centers
Special Purpose Machines (SPM)
Transfer & automation lines
Fasteners, pins, bushes
Automotive & precision engineering components
Advantages vs Single Bore Collet
|
Feature |
Multi Bore Collet |
Single Bore Collet |
|
Productivity |
Very High |
Standard |
|
Cycle Time |
Reduced |
Higher |
|
Part Handling |
Multiple at once |
One at a time |
|
Best For |
Mass production |
General use |
Supply Options
Custom-designed from drawing or sample
Compatible with pneumatic & hydraulic collet chucks
Hardened / rubber lined / carbide lined options
Export-quality manufacturing & packing
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.
An MT Collet (Morse Taper Collet) is a tool-holding collet with a Morse taper shank used on drilling machines, milling machines, lathes, and radial drills. It securely holds straight-shank tools such as drills, reamers, end mills, and taps, providing good concentricity and rigid support for accurate machining.
An SDC Collet is a single-taper precision tool-holding collet designed to deliver strong gripping force with low runout. It is commonly used in CNC machining centers, drilling and tapping machines, and SPMs where high rigidity, repeatability, and accurate tool holding are required.
A Bearing Collet is a precision workholding collet designed to securely hold bearing components such as inner rings, outer rings, races, and assembled bearings during grinding, turning, inspection, and assembly operations. It provides uniform clamping, high concentricity, and distortion-free holding, ensuring bearing accuracy, performance, and long service life.
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.
The NBC Collet is a high-precision tool holding component designed for CNC, milling, and turning applications.
Provides superior clamping strength for consistent and accurate machining operations.
Made from high-grade hardened steel for exceptional durability and long service life.
Ensures minimal runout, improving cutting accuracy and surface finish quality.
Reduces vibration during machining, enhancing tool life and operational stability.
Compatible with NBC collet chucks and various tool holding systems.
Easy to install, remove, and maintain in workshop and industrial environments.
Perfect for machinists seeking precision, rigidity, and reliable performance.