Numertap® 770
ER Collet Tap Adapters
Adapters for use with Square Drive Collets & ANSI (Inch & Metric) Tap Shanks
(Image A)
- For use in synchronous tapping cycles on DIN, ISO, Japanese or ANSI (inch and metric) tap shanks.
- Provides flexibility for any tap shank size.
Adapters for use with DIN, ISO, Japanese & ANSI (Inch & Metric) Tap Shanks
(Image B)
Adjustable drive plug for any square size in the tap range. Use standard ER Collets, refer to tap size chart.
| Part Number | Collet Size | Tap Size Range | B | C | Collet Nut | Collet Nut Wrench | Open End Wrench* |
|---|---|---|---|---|---|---|---|
| 7716-ER16 | 16 | #8 - 1/4 | 1.26 | 1.54 | 16ERHPN | ECN20W | ECN20W |
| 7716-ER20 | 20 | #8 - 3/8 | 1.38 | 1.58 | 20ERHPN | 20ERHNW | ECN20W |
| 7716-ER25 | 25 | #8 - 5/8 | 1.65 | 1.50 | 25ERPN | 25ERNW | ECN12W |
| 7716-ER32 | 32 | #8 - 13/16 | 1.97 | 2.34 | 32ERPN | 32ERNW | 180CNW |
| 7716-ER40 | 40 | 1/4 - 1" | 2.48 | 2.34 | 40ERPN | 40ERNW | 180CNW |
| * Use on wrench flats to assist in tightening collet nut. | |||||||
| Part Number | Coolant | Collet Size Range | Tap Size | B | C | Collet Nut Wrench | Collet Nut Wrench* | Open End |
|---|---|---|---|---|---|---|---|---|
| 7716-ER16U | 7716-ER16UC | 16 | #6-3/8 | 1.26 | 1.71 | 16ERHPN | ECN20W | ECN20W |
| 7716-ER20U | 7716-ER20UC | 20 | #10-5/8 | 1.38 | 1.93 | 20ERHPN | 20ERHNW | ECN20W |
| 7716-ER32U | 7716-ER32UC | 32 | 9/16-15/16 | 1.97 | 2.43 | 32ERPN | 32ERNW | 180CNW |
| 7716-ER40U | 7716-ER40UC | 40 | 1.0-1.375 | 2.48 | 3.54 | 40ERPN | 40ERNW | 180CNW |
| * Use on wrench flats to assist in tightening collet nut. | ||||||||
