Milling Collets

About Milling Collets

Milling collets are precision work-holding devices used in milling machines, lathes, and machining centres to securely grip cutting tools, drill bits, and rotating tooling. These cylindrical sleeves feature a tapered exterior that fits into matching morse taper sockets (such as MT2 or MT3), with a spring-like slotted design that provides consistent clamping force around the tool shank. MyToolShed.co.uk stocks quality milling collets from trusted brands including Sealey and Draper, available in various morse taper sizes and configurations to suit different machining applications.

Available as individual collets or convenient multi-piece sets, these essential machining accessories ensure accurate tool centring and minimal runout during metalworking operations. The collet system offers superior grip and concentricity compared to standard drill chucks, making them indispensable for precision engineering work where dimensional accuracy is critical.

Applications

Milling collets are used across numerous trades and industries, including:

• Engineering workshops – precision machining and component manufacturing
• Model engineers – small-scale metalworking and hobby machining projects
• Tool and die makers – creating moulds, jigs, and fixtures
• Educational facilities – technical colleges and training workshops
• Maintenance engineers – repair and modification work in industrial settings
• General machinists – milling, drilling, and reaming operations on lathes and mills

Choosing The Right Milling Collets

When selecting milling collets from MyToolShed.co.uk, consider these important factors:

• Morse taper size – Match the collet taper to your machine's spindle (common sizes include MT2 and MT3)
• Collet capacity – Ensure the collet size accommodates your tool shanks (typically M10, M12, or metric sizes)
• Set versus individual – Multi-piece sets offer better value and versatility for varied tooling sizes
• Material quality – Look for hardened and ground collets from reputable brands like Sealey and Draper for longevity
• Machine compatibility – Check compatibility with your specific lathe or milling machine model
• Accuracy requirements – Higher precision work demands collets with tighter tolerances and better concentricity

Safety Information

Always ensure collets are properly seated in the morse taper socket and correctly tightened before operating machinery. Inspect collets regularly for wear, damage, or cracks that could compromise grip strength. Never exceed the manufacturer's recommended spindle speed for your collet and tool combination. Wear appropriate PPE including safety glasses when operating milling or turning equipment, and ensure workpieces are securely held before commencing machining operations.

Frequently Asked Questions

What's the difference between MT2 and MT3 collets?

MT2 and MT3 refer to different morse taper sizes – MT3 is larger with a steeper taper angle. Check your machine's spindle specification to determine which size you require, as they are not interchangeable.

Can I use milling collets on both lathes and milling machines?

Yes, provided your machine has the correct morse taper socket. Many mini lathes and bench-top mills use MT2 or MT3 tapers, making collets versatile across different machines with matching specifications.

Do collet sets include the drawbar?

Most collet sets include only the collets themselves. The drawbar or securing mechanism is typically supplied with your lathe or milling machine, though MyToolShed stocks compatible accessories separately if required.