Product Name : ER Spring Collet
BT / NT Series
Product Description
proimages/product/tool-holder/th-1/th-1-24-2.jpg
  • DIN6499 ISO15488 Collet must be assembled into the clamping nut before inserting into the chuck

Metric Size

Model No.DLdWeight (kg)
ER08 8.5 13.5 1,1.5,2,2.5,3,3.5,4,4.5,5 0.01
ER11 11.5 18 1,1.5,2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7 0.01
ER16 17 27 1,1.5,2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7,7.5,8,8.5,9,9.5,10 0.03
ER20 21 31 1,1.5,2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7,7.5,8,8.5,9,9.5,10,10.5,11,11.5,12,12.5,13 0.04
ER25 26 35 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 0.07
ER32 33 40 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 0.15
ER40 41 46 3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26 0.27
ER50 52 60 12,14,16,18,20,22,24,26,28,30,32,34 0.45

Unit: mm

Inch Size

Model No.DLdWeight (kg)
ER11 11.5 18 1/8,5/32,3/16,7/32,1/4 0.01
ER16 17 27 1/8,5/32,3/16,7/32,1/4,9/32,5/16,11/32,3/8 0.03
ER20 21 31 1/8,5/32,3/16,7/32,1/4,9/32,5/16,11/32,3/8,13/32,7/16,1/2 0.04
ER25 26 35 1/8,5/32,3/16,7/32,1/4,9/32,5/16,11/32,3/8,7/16,15/32,1/2,9/16,19/32,5/8 0.07
ER32 33 40 1/8,5/32,3/16,7/32,1/4,5/16,11/32,3/8,7/16,15/32,1/2,17/32,9/16,5/18,21/32,11/16,3/4,25/32 0.15
ER40 41 46 1/8,5/32,3/16,1/4,9/32,5/16,3/8,7/16,15/32,1/2,9/16,5/8,19/32,11/16,23/32,3/4,25/32,13/16,27/32,7/8,15/16,31/32,1 0.27

Unit: mm

ER08ER11ER16ER20
No.RangeNo.RangeNo.RangeNo.Range
ER08-01 1.0 ER11-01 1.0 ER16-01 1.0~0.5 ER20-01 1.0~0.5
ER08-1.5 1.5 ER11-1.5 1.5 ER16-1.5 1.5~1.0 ER20-1.5 1.5~1.0
ER08-02 2.0~1.5 ER11-02 2.0~1.5 ER16-02 2.0~1.0 ER20-02 2.0~1.0
ER08-2.5 2.5~2.0 ER11-2.5 2.5~2.0 ER16-2.5 2.5~2.0 ER20-2.5 2.5~2.0
ER08-03 3.0~2.5 ER11-03 3.0~2.5 ER16-03 3.0~2.0 ER20-03 3.0~2.0
ER08-3.5 3.5~3.0 ER11-3.5 3.5~3.0 ER16-3.5 3.5~3.0 ER20-3.5 3.5~3.0
ER08-04 4.0~3.5 ER11-04 4.0~3.5 ER16-04 4.0~3.0 ER20-04 4.0~3.0
ER08-4.5 4.5~4.0 ER11-4.5 4.5~4.0 ER16-4.5 4.5~4.0 ER20-4.5 4.5~4.0
ER08-05 5.0~4.5 ER11-05 5.0~4.5 ER16-05 5.0~4.0 ER20-05 5.0~4.0
ER11-5.5 5.5~5.0 ER16-5.5 5.5~5.0 ER20-5.5 5.5~5.0
ER11-06 6.0~5.5 ER16-06 6.0~5.0 ER20-06 6.0~5.0
ER11-6.5 6.5~6.0 ER16-6.5 6.5~6.0 ER20-6.5 6.5~6.0
ER11-07 7.0~6.5 ER16-07 7.0~6.0 ER20-07 7.0~6.0
ER16-7.5 7.5~7.0 ER20-7.5 7.5~7.0
ER16-08 8.0~7.0 ER20-08 8.0~7.0
ER16-8.5 8.5~8.0 ER20-8.5 8.5~8.0
ER16-09 9.0~8.0 ER20-09 9.0~8.0
ER16-9.5 9.5~9.0 ER20-9.5 9.5~9.0
ER16-10 10~9.0 ER20-10 10~9.0
ER20-10.5 10.5~10
ER20-11 11~10
ER20-11.5 11.5~11
ER20-12 12~11
ER20-12.5 12.5~12
ER20-13 13~12
ER25ER32ER40ER50
No.RangeNo.RangeNo.RangeNo.Range
ER25-02 2.0~1.0 ER32-02 2.0~1.0 ER40-03 3.0~2.0 ER50-12 12~10
ER25-03 3.0~2.0 ER32-03 3.0~2.0 ER40-04 4.0~3.0 ER50-14 14~12
ER25-04 4.0~3.0 ER32-04 4.0~3.0 ER40-05 5.0~4.0 ER50-16 16~14
ER25-05 5.0~4.0 ER32-05 5.0~4.0 ER40-06 6.0~5.0 ER50-18 18~16
ER25-06 6.0~5.0 ER32-06 6.0~5.0 ER40-07 7.0~6.0 ER50-20 20~18
ER25-07 7.0~6.0 ER32-07 7.0~6.0 ER40-08 8.0~7.0 ER50-22 22~20
ER25-08 8.0~7.0 ER32-08 8.0~7.0 ER40-09 9.0~8.0 ER50-24 24~22
ER25-09 9.0~8.0 ER32-09 9.0~8.0 ER40-10 10~9.0 ER50-26 26~24
ER25-10 10~9.0 ER32-10 10~9.0 ER40-11 11~10 ER50-28 28~26
ER25-11 11~10 ER32-11 11~10 ER40-12 12~11 ER50-30 30~28
ER25-12 12~11 ER32-12 12~11 ER40-13 13~12 ER50-32 32~30
ER25-13 13~12 ER32-13 13~12 ER40-14 14~13 ER50-34 34~32
ER25-14 14~13 ER32-14 14~13 ER40-15 15~14
ER25-15 15~14 ER32-15 15~14 ER40-16 16~15
ER25-16 16~15 ER32-16 16~15 ER40-17 17~16
ER32-17 17~16 ER40-18 18~17
ER32-18 18~17 ER40-19 19~18
ER32-19 19~18 ER40-20 20~19
ER32-20 20~19 ER40-21 21~20
ER40-22 22~21
ER40-23 23~22
ER40-24 24~23
ER40-25 25~24
ER40-26 26~25
  • (Suggested clamping range should be 0.5mm)