
What is an MT Collet?
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 is designed to hold straight-shank tools such as drills, reamers, end mills, and taps with good concentricity and rigid support.
Key Features
- • Accurate holding of straight-shank tools
- • Rigid Morse taper mounting
- • Easy installation in MT spindle
- • Suitable for drilling, milling & reaming
- • Durable and cost-effective
- • Available in multiple MT sizes
MT Collet – Exact Dimension Table
|
MT Size
|
Tool Holding Range (mm)
|
Taper Type
|
Typical Application
|
|
MT1
|
3 – 10
|
Morse Taper 1
|
Light drilling machines
|
|
MT2
|
4 – 16
|
Morse Taper 2
|
Drill press, lathe tailstock
|
|
MT3
|
6 – 20
|
Morse Taper 3
|
Milling & drilling machines
|
|
MT4
|
8 – 25
|
Morse Taper 4
|
Radial drill, heavy drilling
|
|
MT5
|
12 – 32
|
Morse Taper 5
|
Heavy-duty drilling machines
|
Exact OD & length depend on MT standard and machine spindle.
Construction Details

- • Material: Alloy Steel
- • Heat Treatment: Hardened & tempered
- • Hardness: 60 HRC
- • Finish: Precision ground bore & taper
- • Design: Slotted collet for uniform gripping
Types of MT Collets
- • Standard MT collet
- • MT collet with drawbar thread
- • Step-type MT collet
- • Soft (machinable) MT collet
- • Special MT collet (as per tool or drawing)
Applications
- • Drilling machines
- • Milling machines
- • Lathe tailstock operations
- • Radial drilling machines
- • Tool rooms & workshops
MT Collet vs Drill Chuck
|
Feature
|
MT Collet
|
Drill Chuck
|
|
Accuracy
|
Higher
|
Medium
|
|
Rigidity
|
High
|
Medium
|
|
Tool Slippage
|
Very Low
|
Possible
|
|
Heavy Drilling
|
Good
|
Limited
|
|
Cost
|
Economical
|
Higher (precision type)
|
Supply Options
- • MT1 to MT5 sizes
- • Metric & inch tool sizes
- • Hardened or soft versions
- • Custom sizes as per requirement
- • Export-quality packing available