A Drill Collet is a precision tool-holding collet used to securely hold drill bits, reamers, taps, and straight-shank tools with higher accuracy and grip than conventional drill chucks. It is commonly used on lathes (tailstock), drilling machines, milling machines, CNC machines, and SPMs where low runout, firm holding, and consistent drilling accuracy are essential.
🔧 What is a Drill Collet?
A Drill Collet is a tool-holding collet used to hold drill bits, reamers, taps, and straight-shank tools with better accuracy and grip than a conventional drill chuck.
It is commonly used in lathes (tailstock), drilling machines, milling machines, CNC machines, and SPMs.
Drill collets are preferred where low runout, firm holding, and consistent drilling accuracy are required.
Key Features
Accurate centering of drill tools
Strong & uniform gripping force
Reduced runout compared to drill chucks
Simple, compact & robust design
Long service life
Cost-effective tool holding solution
📐 Drill Collet – Exact Dimension Table
|
Drill Collet Size |
Tool Holding Range (mm) |
Outer Diameter (OD) mm |
Overall Length (L) mm |
|
A3 COLLET |
1-13MM |
21.5 |
56 |
|
A4 COLLET |
1-18MM |
33.5 |
89 |
📌 OD and length may vary slightly based on machine and application.
Construction Details
Material: EN8 / SPRING STEEL/ Alloy Steel
Heat Treatment: Hardened & tempered
Hardness: 60 HRC
Design: Precision slit for uniform grip
Finish: Bore & OD ground for accuracy
Types of Drill Collets
Straight Drill Collet
Step Drill Collet
Drill Collet with Sleeve
Tailstock Drill Collet
Special Drill Collet (as per drawing)
Applications
Lathe tailstock drilling
CNC & conventional drilling machines
Milling machines
Special Purpose Machines (SPM)
Reaming & tapping operations
Supply Options
Metric & inch sizes
Hardened or soft (machinable)
Standard & special bores
Custom drill collets as per drawing or sample
Export-quality packing available
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