ER Coolant Collets

Features and Benefits

Made of steel under heat treatment and precise grinding process allowing for precise accuracy, powerful clamping ability and durability
Used for boring, milling, drilling and tapping
No disc, plugs or other hardware needed
Intended to be used with cylindrical shank tools, no flats. The full length of the cutting tool should be placed in the collet. If the above requirements are not fulfilled, coolant leakage may occur.
Sealed for coolant-through applications. Pressure resistance tested to 300 psi.

Collapse Range

Categories: Toolholding, Collets & Sets

Description

Size [inch]	ER16 MSC Item #	ER20 MSC Item #	ER25 MSC Item #	ER32 MSC Item #	ER40 MSC Item #
1/8	70894415	70894423	–	–	–
5/32	70894720	70894738*	70894746*	70894753*	–
3/16	72480726	73572513*	72480940*	72190978*	73055220*
7/32	70894779	–	–	–	–
1/4	72480734	73572521	72480957*	72190986*	73055238*
9/32	70894787	70894795	70894803	70894811*	–
5/16	72480742	73572539	72480965	72190994*	73055246*
11/32	70894464	70894472	70894480	–	70894498
3/8	72480759	73572547	72480973	72191000	73055253
13/32	70894506	70894514	70894522	–	–
7/16	–	73572554	72480981	72191018	73055261
15/32	–	70894548	70894555	70894563	–
1/2	–	73572562	72480999	72191026	73055279
17/32	–	–	70894589	70894597	–
9/16	–	–	72481005	72191034	73055287
19/32	–	–	70894613	70894621	–
5/8	–	–	72481013	72470651	73055295
21/32	–	–	–	70894647	–
11/16	–	–	–	72470669	73055303
23/32	–	–	–	70894662	–
3/4	–	–	–	72470677	73055311
25/32	–	–	–	70895552	–
13/16	–	–	–	–	73055329
7/8	–	–	–	–	73055337
15/16	–	–	–	–	73055345
1	–	–	–	–	73055352

Size [mm]	ER16 MSC Item #	ER20 MSC Item #	ER25 MSC Item #	ER32 MSC Item #	ER40 MSC Item #
4.00	72480650	73572414*	72480817*	72470685*	73055360*
5.00	72480668	73572422*	72480825*	72470693*	73055378*
6.00	72480676	73572430	72480833*	72470701*	73055386*
7.00	72480684	73572448	72480841*	72470719*	–
8.00	72480692	73572455	72480858	72470727*	73055402*
9.00	72480700	73572463	72480866	72470735*	73055410*
10.00	72480718	73572471	72480874	72470743	73055428
11.00	–	73572489	72480882	72470750	–
12.00	–	73572497	72480890	72470768	73055444
13.00	–	73572505	72480908	72470776	73055451
14.00	–	–	72480916	72470784	73055469
15.00	–	–	72480924	72470792	73055477
16.00	–	–	72480932	72470800	73055485
17.00	–	–	–	72470818	73055493
18.00	–	–	–	72470826	73055501
19.00	–	–	–	72470834	–
20.00	–	–	–	72470842	73055527
21.00	–	–	–	–	–
22.00	–	–	–	–	73055543
23.00	–	–	–	–	73055550
24.00	–	–	–	–	–
25.00	–	–	–	–	73055576
26.00	–	–	–	–	73055584

Collet Series	Number of Collets	Size Range [inch]	MSC Item #
ER16	10	1/8-13/32	70894324
ER20	12	5/32-1/2	70894340
ER25	13	1/4-5/8	70894365
ER32	17	1/4-3/4	70894381

Collet Series	Number of Collets	Size Range [mm]	MSC Item #
ER16	13	4.00-10.00	70894332
ER20	17	5.00-13.00	70894357
ER25	21	6.00-16.00	70894373
ER32	21	10.00-20.00	70894399

*Rubber sealed collets

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