Page 192 - Parlec Catalog

Numertap 770
®

190 ER Collet Tap Adapters

C
B
Ø1.250"

ER Collet Nut
Wrench Flats
ER COLLET TAP ADAPTERS

ƒ For use in with Square Drive Collets

Part Number
Part Number with Coolant Collet Size Tap Size Range B C Collet Nut Wrench
7716-ER16 7716C-ER16 16 #8 - 1/4 1.26 1.54 ECN20W
7716-ER20 7716C-ER20 20 #8 - 1/2 1.38 1.58 20ERHNW
7716-ER25 7716C-ER25 25 #8 - 5/8 1.65 1.50 25ERNW
7716-ER32 7716C-ER32 32 #8 - 13/16 1.97 2.34 32ERNW
7716-ER40 7716C-ER40 40 1/4 - 1 2.48 2.34 40ERNW

C
B
Ø1.250"

ER Collet Nut

Adjustment Drive
UNIVERSAL ER COLLET TAP ADAPTERS

ƒ For use in all tapping cycles on DIN, ISO, Japanese or ANSI (inch and metric) tap shanks.
ƒ Provides flexibility for any tap shank size.

ƒ Adjustable drive plug for any square size in the tap range. Use standard ER Collets, refer to
tapsize chart, pages 74-86

Part Number Collet Size Collet Nut
Part Number with Coolant Range Tap Size B C Wrench Open End
7716-ER16U 7716-ER16UC 16 #6 - 3/8 1.26 1.71 ECN20W ECN20W
7716-ER20U 7716-ER20UC 20 #10 - 5/8 1.38 1.93 20ERHNW ECN20W
7716-ER32U 7716-ER32UC 32 9/16 - 15/16 1.97 2.43 32ERNW 180CNW
7716-ER40U 7716-ER40UC 40 1.0 - 1.375 2.48 3.54 40ERNW 180CNW

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