Black Gold Coolant Rings NutsBlack Gold Coolant Rings NutsBlack Gold Coolant Rings Nuts

Keeps toolholders and collets clean for
improved cutting performance

Dust ring snaps into the nut before
assembling with collet and cutting tool.
A fast and simple way to seal the
toolholder assembly from contamination.

 


Features

  • Protects collets and extends their life

  • Prevents dust contamination

  • Use with Dust Seal Nuts


Dimensions D
ER16 12.9 mm
ER 20 15.9 mm
ER 25 21 mm
ER 32 26.95 mm
ER 40 33.3 mm

 

Dust Seals (use with Dust Seal Nuts)

ER 16 ER 20 ER 25 ER 32 ER 40 Range d
Inch Shank
08516 - 03.5 08520 - 03.5 08525 - 03.5 08532 - 03.5 08540- 03.5 3.5 – 3.0mm
1/8"
08516 - 04.0 08520 - 04.0 08525 - 04.0 08532 - 04.0 08540 - 04.0 4.0 – 3.5mm
5/32"
08516 - 04.5 08520 - 04.5 08525 - 04.5 08532 - 04.5 08540 - 04.5 4.5 – 4.0mm
11/64"
08516 - 05.0 08520 - 05.0 08525 - 05.0 08532 - 05.0 08540 - 05.0 5.0 – 4.5mm
3/16"
08516 - 05.5 08520 - 05.5 08525 - 05.5 08532 - 05.5 08540 - 05.5 5.5 – 5.0mm
13/64"
08516 - 06.0 08520 - 06.0 08525 - 06.0 08532 - 06.0 08540 - 06.0 6.0 – 5.5mm
7/32"
08516 - 06.5 08520 - 06.5 08525 - 06.5 08532 - 06.5 08540 - 06.5 6.5 – 6.0mm
1/4"
08516 - 07.0 08520 - 07.0 08525 - 07.0 08532 - 07.0 08540 - 07.0 7.0 – 6.5mm
17/64"
08516 - 07.5 08520 - 07.5 08525 - 07.5 08532 - 07.5 08540 - 07.5 7.5 – 7.0mm
9/32"
08516 - 08.0 08520 - 08.0 08525 - 08.0 08532 - 08.0 08540 - 08.0 8.0 – 7.5mm
5/16"
08516 - 08.5 08520 - 08.5 08525 - 08.5 08532 - 08.5 08540 - 08.5 8.5 – 8.0mm
21/64"
08516 - 09.0 08520 - 09.0 08525 - 09.0 08532 - 09.0 08540 - 09.0 9.0 – 8.5mm
11/32"
08516 - 09.5 08520 - 09.5 08525 - 09.5 08532 - 09.5 08540 - 09.5 9.5 – 9.0mm
3/8"
08516 - 10.0 08520 - 10.0 08525 - 10.0 08532 - 10.0 08540 - 10.0 10.0 – 9.5mm
25/64"
  08520 - 10.5 08525 - 10.5 08532 - 10.5 08540 - 10.5 10.5 – 10.0mm
13/32"
  08520 - 11.0 08525 - 11.0 08532 - 11.0 08540 - 11.0 11.0 – 10.5mm
27/64"
  08520 - 11.5 08525 - 11.5 08532 - 11.5 08540 - 11.5 11.5 – 11.0mm
7/16"
  08520 - 12.0 08525 - 12.0 08532 - 12.0 08540 - 12.0 12.0 – 11.5mm
15/32"
  08520 - 12.5 08525 - 12.5 08532 - 12.5 08540 - 12.5 12.5 – 12.0mm
31/64"
  08520 - 13.0 08525 - 13.0 08532 - 13.0 08540 - 13.0 13.0 – 12.5mm
1/2"
    08525 - 13.5 08532 - 13.5 08540 - 13.5 13.5 – 13.0mm
17/32"
    08525 - 14.0 08532 - 14.0 08540 - 14.0 14.0 – 13.5mm
35/64"
    08525 - 14.5 08532 - 14.5 08540 - 14.5 14.5 – 14.0mm
9/16"
    08525 - 15.0 08532 - 15.0 08540 - 15.0 15.0 – 14.5mm
37/64"
    08525 - 15.5 08532 - 15.5 08540 - 15.5 15.5 – 15.0mm
19/32"
    08525 - 16.0 08532 - 16.0 08540 - 16.0 16.0 – 15.5mm
5/8"
      08532 - 16.5 08540 - 16.5 16.5 – 16.0mm
41/64"
      08532 - 17.0 08540 - 17.0 17.0 – 16.5mm
21/32"
      08532 - 17.5 08540 - 17.5 17.5 – 17.0mm
11/16"
      08532 - 18.0 08540 - 18.0 18.0 – 17.5mm
45/64"
      08532 - 18.5 08540 - 18.5 18.5 – 18.0mm
23/32"
      08532 - 19.0 08540 - 19.0 19.0 – 18.5mm
3/4"
      08532 - 19.5 08540 - 19.5 19.5 – 19.0mm
49/64"
      08532 - 20.0 08540 - 20.0 20.0 – 19.5mm
25/32"
        08540 - 20.5 20.5 – 20.0mm
51/64"
        08540 - 21.0 21.0 – 20.5mm
13/16"
        08540 - 21.5 21.5 – 21.0mm
27/32"
        08540 - 22.0 22.0 – 21.5mm
55/64"
        08540 - 22.5 22.5 – 22.0mm
7/8"
        08540 - 23.0 23.0 – 22.5mm
29/32"
        08540 - 23.5 23.5 – 23.0mm
59/64"
        08540 - 24.0 24.0 – 23.5mm
15/16"
        08540 - 24.5 24.5 – 24.0mm
61/64"
        08540 - 25.0 25.0 – 24.5mm
31/32"
        08540 - 25.5 25.5 – 25.0mm
1"
        08540 - 26.0 26.0 – 25.5mm
1 1/64"