ER Tap Collets

ER Rigid Tapping Collets

ER Rigid Tapping Collets with Square Drive
For synchronous tapping operations using any ER collet chuck. Collet bore is exact tool diameter, with square drive, for accuracy and rigidity. Available sealed for coolant-through applications, as well as in DIN and JIS standard metric sizes.

HAND TAP SIZE	A TAP SHANK DIAMETER	ER40 SERIES TAP COLLET	ER32 SERIES TAP COLLET	ER25 SERIES TAP COLLET	ER20 SERIES TAP COLLET	ER16 SERIES TAP COLLET
#0-6	.141	ER40-0141TH	ER32-0141TH	ER25-0141TH	ER20-0141TH	ER16-0141TH
#8	.168	ER40-0168TH	ER32-0168TH	ER25-0168TH	ER20-0168TH	ER16-0168TH
#10	.194	ER40-0194TH	ER32-0194TH	ER25-0194TH	ER20-0194TH	ER16-0194TH
#12	.220	ER40-0220TH	ER32-0220TH	ER25-0220TH	ER20-0220TH	ER16-0220TH
1/4	.255	ER40-0255TH	ER32-0255TH	ER25-0255TH	ER20-0255TH	ER16-0255TH
5/16	.318	ER40-0318TH	ER32-0318TH	ER25-0318TH	ER20-0318TH	ER16-0318TH
3/8	.381	ER40-0381TH	ER32-0381TH	ER25-0381TH	ER20-0381TH
7/16	.323	ER40-0323TH	ER32-0323TH	ER25-0323TH	ER20-0323TH
1/2	.367	ER40-0367TH	ER32-0367TH	ER25-0367TH	ER20-0367TH
9/16	.429	ER40-0429TH	ER32-0429TH	ER25-0429TH
5/8	.480	ER40-0480TH	ER32-0480TH	ER25-0480TH
11/16	.542	ER40-0542TH	ER32-0542TH
3/4	.590	ER40-0590TH	ER32-0590TH
13/16	.652	ER40-0652TH	ER32-0652TH
7/8	.697	ER40-0697TH
15/16	.760	ER40-0760TH
1	.800	ER40-0800TH
PIPE TAP SIZE
1/8 (SS)	.313	ER40-0313PT	ER32-0313PT	ER25-0313PT
1/8 (LS)	.437	ER40-0437PT	ER32-0437PT	ER25-0437PT
1/4P	.562	ER40-0562PT	ER32-0562PT
3/8P	.700	ER40-0700PT
1/2P	.687	ER40-0687PT

ER Tapping Collets with Axial Compensation

ER Quick-Change Tapping Collets with Axial Compensation
For use with any ER collet chuck, these tapping collets help prevent tap breakage on machines requiring axial compensation. Friction-free ball-bearing drive. Metric sizes available upon request.

HAND TAP SIZE	TAP SHANK DIAMETER	ER40 CAT. NO.	ER32 CAT. NO.	ER25 CAT. NO.	ER20 CAT. NO.	ER16 CAT. NO.
#0-6	.141	ER40AF-0141TH	ER32AF-0141TH	ER25AF-0141TH	ER20AF-0141TH	ER16AF-0141TH
#8	.168	ER40AF-0168TH	ER32AF-0168TH	ER25AF-0168TH	ER20AF-0168TH	ER16AF-0168TH
#10	.194	ER40AF-0194TH	ER32AF-0194TH	ER25AF-0194TH	ER20AF-0194TH	ER16AF-0194TH
#12	.220	ER40AF-0220TH	ER32AF-0220TH	ER25AF-0220TH	ER20AF-0220TH
1/4	.255	ER40AF-0255TH	ER32AF-0255TH	ER25AF-0255TH	ER20AF-0255TH
5/16	.318	ER40AF-0318TH	ER32AF-0318TH	ER25AF-0318TH
3/8	.381	ER40AF-0381TH	ER32AF-0381TH	ER25AF-0381TH
7/16	.323	ER40AF-0323TH	ER32AF-0323TH	ER25AF-0323TH
1/2	.367	ER40AF-0367TH	ER32AF-0367TH	ER25AF-0367TH
9/16	.429	ER40AF-0429TH	ER32AF-0429TH
5/8	.480	ER40AF-0480TH
11/16	.542	ER40AF-0542TH
PIPE TAP SIZE
1/8P (LS)	.437	ER40AF-0437PT	ER32AF-0437PT
1/4P	.562	ER40AF-0562PT