HT-0001 ER series collets with standard
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Product Description

1. All types of ER collets conform to the DIN 6499B Standard

2.Made of special elastic steel65Mn
3.HardnessHRC44-48 

4.ModeER8-ER50

5.Accuracy0.01mm, 0.015mm

6.PackagingPaper case or plastic case

7. Used for boring, milling, drilling, tapping, grinding and engraving operation etc. 

HT-0001 ER SERIES COLLETS WITH STANDARD DIN6499B
Model d H7 D D1 D2 L L1 L2 L3 Collapsible capacity
ER8 collet ≥1.0-5.0 8 8.45 6.5 13.5 2.98 1.5 1.2 0.5
ER11 collet ≥1.0-7.0 11 11.5 9.5 18.0 3.8 2.5 2.0 0.5
ER16 collet ≥1.0-2.5 16 17 13.8 27.5 6.26 4.0 2.7 0.5
>2.5-10.0 16 17 13.8 27.5 6.26 4.0 2.7 1.0
ER20 collet ≥1.0-2.5 20 21 17.4 31.5 6.36 4.8 2.8 0.5
>2.5-13.0 20 21 17.4 31.5 6.36 4.8 2.8 1.0
ER25 collet ≥1.0-2.5 25 26 22.0 34.0 6.66 5.0 3.1 0.5
>2.5-16.0 25 26 22.0 34.0 6.66 5.0 3.1 1.0
ER32 collet ≥2.0-2.5 32 33 29.2 40.0 7.16 5.5 3.6 0.5
>2.5-20.0 32 33 29.2 40.0 7.16 5.5 3.6 1.0
ER40 collet ≥3.0-26.0 40 41 36.2 46.0 7.66 7.0 4.1 1.0
ER50 collet ≥6.0-10.0 50 52 46.0 60.0 12.6 8.5 5.5 1.0
>10.0-34.0 50 52 46.0 60.0 12.6 8.5 5.5 2.0
Inspection of Accuracy
D L Run out toierance
1.0-1.6 6.00 0.01 0.02
>1.6-3.0 10.00
>3.0-6.0 16.00
>6.0-10.0 25.00
>10.0-18.0 40.00 0.02 0.02
>18.0-26.0 50.00
>26.0-30.0 60.00
>30.0-34.0 80.00 0.02 0.03

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