ER Tapping Collets
ER/G tapping collets for tap holding where square-drive and shank compatibility are required.
Technical Product Information
ER/G tapping collets are used to hold taps in synchronous or floating tapping workflows where the tap shank and square drive must be matched to the collet model.
Catalogue data includes ER11 through ER50 tapping families and tap-related dimensions. Buyers should provide tap diameter, square size, holder series and quantity for a focused quotation.
Technical Specifications
| Specification | Current published information |
|---|---|
| Product category | Tapping collets |
| Model or series | ER/G series |
| Clamping range | Tap sizes shown in current catalogue table |
| Available sizes | ER11, ER16, ER20, ER25, ER32, ER40, ER50 catalogue families |
| Packaging | Standard export packaging; private-label packaging subject to confirmation |
| OEM availability | Available subject to drawing, quantity and engineering review |
| Private-label availability | Available subject to quantity and packaging review |
| Custom manufacturing availability | Available subject to drawing or sample review |
| Design options | 8-slot FERG/GER and 16-slot TERG rigid tapping collets |
| Tap-shank diameters | 3.5-20.0 mm across listed TERG models |
| Square-drive sizes | 2.7-16.0 mm across listed TERG models |
| External dimensions | ER16G: 27.5 × 16.8 mm; ER20G: 31.5 × 20.8 mm; ER25G: 34.0 × 25.8 mm; ER32G: 40.0 × 32.8 mm |
| Installation requirement | Tap shank and square-drive dimensions must match; the square must engage the collet square bore |
Applications
- Thread tapping
- Synchronous tapping
- Production machining
Compatible Equipment
- ER tapping holders
- CNC machining centres
- Tap holders
Inspection and Quality Control
Dimensional inspection, runout verification, hardness testing and surface inspection can be agreed based on the order requirement. No unverified tolerance is presented as confirmed on this page.
Review quality-control processOEM and Private Label
OEM production, private-label packaging and custom manufacturing are available subject to drawing, quantity, marking and documentation review.
OEM and private-label optionsRelated Products
Related Technical Resources
Frequently Asked Questions
What information is needed for a tapping collet quote?
Send tap shank diameter, square size, ER holder size, tolerance requirement and order quantity.
Are all tap sizes confirmed?
The catalogue includes many tap-related dimensions, but Yuanchen should confirm availability before production.
Send ER Tapping Collets Requirements
Include model, size, quantity, tolerance, packaging requirements and drawings where available.