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** Our Christmas Holiday schedule this year is as follows: We will be closed on Tuesday December 24 and Wednesday December 25 in observance of Christmas Eve and Christmas Day. Merry Christmas! **

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Broaching Tools
& Holders

Quick Change Inserts
Forming & Shaving

Cut Off Tooling

Tapping & Reaming

Collets &
Collet Chucks

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Tool Holder
Bushings

Max-Bar Catalog

6mm I.C. Diamond
Insert Tooling

8mm I.C. Diamond
Insert Tooling

1/2" I.C. Diamond Insert Tooling

3/8" I.C. Triangular Insert Tooling (up to 10MM Bar Dia.)

1/2" I.C. Triangular Insert Tooling (up to 16MM Bar Dia.)

5/8" I.C. Triangular Insert Tooling (up to 20MM Bar Dia.)

Face Grooving
& Uni-Max

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Straight Shank "ER" Collet Chucks

Straight Shank ER Collet Chucks

Straight Shank ER Collet Chucks - Diagram

"M' WRENCH
TO FIT NUT#	WRENCH#
ER8M	ER8MW
ER11M	ER11MW
ER16M	ER16MW
ER20M	ER20MW
ER25M	ER25MW
"H" WRENCH
TO FIT NUT#	WRENCH#
ER11H	ER11HW
ER12H	ER11HW
ER16H	ER16HW
ER20H	ER20HW
"E" WRENCH
TO FIT NUT#	WRENCH#
ER16E	ER16EW
ER20E	ER20EW
ER25E	ER25EW
ER32E	ER32EW
ER40E	ER40EW
ER50E	ER50EW

ENGLISH S.S. COLLET CHUCK (STEPPED)
CAPACITY	COLLET SERIES	A	B	C	D	NUT	PART #
1/16-1/4	ER11	1/4	2.28	1.77	.63	ER11M	SS025ER11228
1/16-13/32	ER16	3/8	2.76	1.73	.87	ER16M	SS038ER16276
1/16-13/32	ER16	1/2	6.61	6.06	.87	ER16M	SS050ER16661
1/16-13/32	ER16	5/8	3.35	2.36	1.10	ER16H	SS062ER16335
1/16-13/32	ER16	5/8	4.13	3.15	1.10	ER16H	SS062ER16413
1/16-1/2	ER20	5/8	5.60	3.94	1.10	ER20M	SS062ER20560
1/16-5/8	ER25	5/8	3.35	1.97	1.65	ER25E	SS062ER25335
1/16-13/32	ER16	3/4	3.11	1.97	1.10	ER16H	SS075ER16311
1/16-13/32	ER16	3/4	4.33	3.15	1.10	ER16H	SS075ER16433
1/16-13/32	ER16	3/4	4.92	3.94	1.10	ER16H	SS075ER16492
1/16-5/8	ER25	3/4	3.35	1.97	1.65	ER25E	SS075ER25335
1/16-5/8	ER25	3/4	5.31	3.94	1.65	ER25E	SS075ER25531
1/16-5/8	ER25	7/8	5.51	3.94	1.65	ER25E	SS088ER25551
3/32-3/4	ER32	1"	3.74	1.97	1.97	ER32E	SS100ER32374
1/8-1	ER40	1"	3.74	1.97	2.48	ER40E	SS100ER40374
1/8-1	ER40	1"	4.33	2.38	2.48	ER40E	SS100ER40433
3/32-3/4	ER32	1-1/4	4.33	1.97	1.97	ER32E	SS125ER32433
3/32-3/4	ER32	1-1/4	4.13	2.36	1.97	ER32E	SS125ER32413
1/8-1	ER40	1-1/4	4.13	2.36	2.48	ER40E	SS125ER40413

METRIC S.S. COLLET CHUCK (STEPPED)
CAPACITY	COLLET SERIES	A	B	C	D	NUT	PART #
0.5-7.0MM	ER11	7MM	58MM	45MM	16MM	ER11M	SS7ER11058
0.5-7.0MM	ER11	8MM	70MM	56MM	16MM	ER11M	SS8ER11070
0.5-10.0MM	ER16	10MM	70MM	44MM	22MM	ER16M	SS10ER16070
0.5-10.0MM	ER16	10MM	86MM	60MM	22MM	ER16M	SS10ER16086
0.5-10.0MM	ER16	10MM	120MM	80MM	22MM	ER16M	SS10ER16120
0.5-10.0MM	ER16	12MM	105MM	80MM	22MM	ER16M	SS12ER16105M
0.5-10.0MM	ER16	12MM	105MM	80MM	28MM	ER16H	SS12ER16105H
1.0-13.0MM	ER20	12MM	142MM	100MM	28MM	ER20M	SS12ER20142
0.5-10.0MM	ER16	14MM	55MM	30MM	28MM	ER16H	SS14ER16055
0.5-10.0MM	ER16	14MM	97MM	60MM	28MM	ER16H	SS14ER16097
1.0-13.0MM	ER20	15MM	142MM	100MM	28MM	ER20M	SS15ER20142
0.5-10.0MM	ER16	16MM	90MM	60MM	28MM	ER16H	SS16ER16090
1.0-13.0MM	ER20	16MM	142MM	100MM	28MM	ER20M	SS16ER20142
1.0-13.0MM	ER20	20MM	55MM	30MM	34MM	ER20H	SS20ER20055
1-16MM	ER25	20MM	85MM	50MM	42MM	ER25E	SS20ER25085
1-16MM	ER25	20MM	135MM	100MM	42MM	ER25E	SS20ER25135
2-20MM	ER32	20MM	83MM	35MM	50MM	ER32E	SS20ER32083
2-20MM	ER32	20MM	75MM	50MM	50MM	ER32E	SS20ER32075
1-16MM	ER25	25MM	85MM	50MM	42MM	ER25E	SS25ER25085
2-20MM	ER32	25MM	95MM	50MM	50MM	ER32E	SS25ER32095
3-26MM	ER40	25MM	95MM	50MM	63MM	ER40E	SS25ER40095

ER Collet Chucks with Side Coolant Port

ER Collet Chucks with Side Coolant Port

ER Collet Chucks with Side Coolant Port - Diagram

Cat. No.

Collet

Series

Collets

Range

L1

L

J

D

D1

ERC25

1/8-5/8

3.00

2.828

M12

1.656

1.656

ERC32

1/8-3/4

3.00

3.031

M16

1.958

1.958