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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