An SK Collet is a single-taper, heavy-duty tool holding collet used for drilling, tapping, reaming, and milling operations.
It offers strong gripping force and high rigidity, making it ideal for SPM machines and CNC machining centers where slip-free holding is required.
🔹 KEY FEATURES
High torque transmission (anti-slip)
Rigid construction for drilling & tapping
Simple, robust design
Long service life
Compatible with standard SK collet chucks
📐 SK COLLET – STANDARD DIMENSION TABLE


|
SK Size
|
Outer Dia (D) mm
|
Length (L) mm
|
Clamping Range (mm)
|
|
SK10
|
16
|
30
|
1 – 10
|
|
SK13
|
20
|
39
|
3 – 13
|
|
SK16
|
25
|
45
|
3 – 16
|
|
SK20
|
30
|
50
|
3 – 20
|
|
SK25
|
36
|
57
|
6 – 25
|
|
|
|
|
|
📌 Each SK collet covers a wider clamping range compared to ER collets; exact size selected as per tool diameter.
🧩 CONSTRUCTION DETAILS
Material: Spring Steel
Heat Treatment: Hardened & tempered
Slots: Heavy-duty straight slits for uniform grip
Finish: Precision ground ID & OD
⚙️ APPLICATIONS
Drilling & tapping operations
Milling machines
CNC machining centers
Special Purpose Machines (SPM)
Rigid tool holding setups
📦 SUPPLY OPTIONS
Metric & Inch sizes
Hardened or soft (machinable)
Standard & special bores
Custom SK collets as per drawing or sample
Export-ready packaging available