A Special Collet is a custom-designed Workholding or tool-holding collet manufactured as per specific job, component shape, machine requirement, or application.
Unlike standard collets, special collets are engineered to deliver perfect grip, higher accuracy, and repeatability for non-standard or critical components.
Special collets are widely used were standard ER, 5C, Traub, or jaw chucks cannot provide optimal holding.
Key Features
- • Custom-made as per drawing or physical sample
- • Exact gripping profile for zero slippage
- • High concentricity & repeat accuracy
- • Suitable for automation & mass production
- • Designed for complex shapes & tight tolerances
- • Long service life with hardened & ground finish
Types of Special Collets We Manufacture
- • Step Collets
- • Profile / Form Collets
- • Square / Hex / Multi-shape Collets
- • Internal Expanding Collets
- • Thin-wall / Delicate component collets
- • Rubber bonded collets
- • Carbide lined collets
- • Diamond coated collets
Special Collet – Typical Dimension Range
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Parameter
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Custom Range
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Clamping Diameter
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2 – 150 mm
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Outer Diameter (OD)
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As per chuck
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Overall Length (L)
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As per machine
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Grip Type
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External / Internal
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Accuracy (TIR)
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≤ 0.01 – 0.03 mm
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Material
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Alloy Steel
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Hardness
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60 HRC (as required)
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All dimensions are manufactured strictly as per customer requirement.
Construction Details
- • Material: EN47 / Alloy Steel / Tool Steel
- • Heat Treatment: Hardened & tempered / case hardened
- • Finish: ID & OD precision ground
- • Surface Options: Plain / Carbide lined / Diamond coated
- • Design: Optimized slit & taper for uniform clamping
Applications
- • CNC turning centers
- • Grinding machines
- • Automation & transfer lines
- • Aerospace & automotive components
- • Hydraulic & precision engineering parts
- • Packaging & aerosol industry
Why Choose Our Special Collets?
- ✔ In-house design & manufacturing
- ✔ Made from drawing or sample
- ✔ Consistent quality for mass production
- ✔ Reduced cycle time & rejection
- ✔ Suitable for Indian & export machines