The 16C collet is a heavy-duty work-holding collet used mainly on CNC lathes, capstan lathes, and bar turning machines. It provides high gripping force, excellent concentricity, and long service life, making it ideal for large-diameter bars and high-precision machining.

|
Product Model
|
Product Parameters
|
|
A
|
B
|
C
|
D(Max)
|
E
|
F
|
G
|
L
|
I
|
J
|
|
|
16C
|
M47.5*1.75
|
40.5
|
48
|
40
|
58.6
|
20°
|
20
|
112
|
65
|
4-1.5
|
|
16C COLLET STANDARD DIMENSIONS (MM)
| Parameter |
Dimension |
| Collet Type |
16C |
| Overall Length (L) |
112 mm |
| Body Diameter (E) |
58.6mm |
| Thread Size |
2-3/4" – 16 TPI |
| Max Bar Capacity |
40 mm |
| Clamping Range |
±0.5 mm |
| Taper Angle |
10° |
| Runout Accuracy |
≤ 0.015 mm |
| Material |
SPRING STEEL (Hardened & Ground) |
| Hardness |
60 HRC |
| Surface Finish |
Precision Ground |
Available Bore Types
✔ Round
✔ Hexagonal
✔ Square
✔ Step Collet
✔ Emergency (Soft) Collet
KEY FEATURES OF 16C COLLET
- • High gripping force for heavy bar turning
- • Excellent concentricity for precision machining
- • Long tool life due to hardened & ground steel
- • Compatible with pneumatic & manual collet chucks
- • Ideal for automobile, aerospace & general engineering
Key Features
- • Strong, rigid gripping for large components
- • High concentricity & repeatability
- • Suitable for mass production
- • Interchangeable with standard 16C chucks
- • Available in round, hex, square, step & emergency types
Construction & Material
- • Material: Spring Steel
- • Heat Treatment: Hardened & tempered
- • Hardness: 60 HRC
- • Finish: Precision ground ID & OD
- • Slots: Uniform slits for strong, even clamping
Types of 16C Collets
- • Round
- • Hex
- • Square
- • Step collet
- • Emergency (soft machinable) collet
Applications
- • CNC turning centers
- • Manual & automatic lathes
- • Grinding machines
- • Indexing fixtures
- • Heavy-duty production work
Supply Options
- • Metric & inch sizes
- • Hardened or soft (machinable)
- • Custom bore & tolerance as per drawing
- • Bulk & export-quality packaging available