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Collet Measuring Guide

The easiest way to determine what type of collet your machine has is to measure the length and diameter of the collet.  All collets have a distinctive length and diameter.  Use the chart below to determine the correct collet series for your machine.

Collet Series Length Diameter
ER11 18 mm (.708") 11.5 mm (.45")
ER16 27.5 mm (1.08") 17 mm (.67")
ER20 31.5 mm (1.24") 21 mm (.83")
ER25 34 mm (1.34") 26 mm (1.02")
ER32 40 mm (1.57") 33 mm (1.3")
ER40 46 mm (1.81") 41 mm (1.61")
SYOZ 20 34 mm (1.34") 20 mm (0.78")
SYOZ 25 52 mm (2.06") 35 mm (1.38")
TG 75 47 mm (1.85") 27 mm (1.06")
TG 100 60 mm (2.36") 35 mm (1.38")
SD-20 mm SHODA 52 mm (2.06") 20 mm (back side)
SD-C001 SHODA 52 mm (2.06") 16 mm (back side)
SS-22 SHODA 40 mm (1.58") 22.5 mm (.89") OD
SD-C015 52 mm (2.06") 24 mm (back side)
Collet TG Collet TG series


Collet SYOZ 25

collet

Collect sizing chart