For CNC tool clamping systems collets, as different countries have different standards, there are ER collets, collets TG, collets SYOZ / EOC / RDO, collets DA, collets SK, collets C type, collets K type, etc. Some of these collets model look alike, so makes users confused when they replaced the old collets. RicoCNC now shows you the collet identification guide:
Collets ER, TG, SYOZ/EOC/RDO, DA, SK are all unique measures. Even if brands have worn away, noted the shape and carefully measure your collets, you can determine what types and sizes of collets it is. Measure the length (L) and depth (D) collets. Then use the guide below to select the right collets replacement.
L
|
D
| |
ER 8
|
13mm (0.51”)
|
8.5mm (0.33″)
|
ER 11
|
18mm (0.708″)
|
11.5mm (0.45″)
|
ER 16
|
27.5mm (1.08″)
|
17mm (0.67″)
|
ER 20
|
31.5mm (1.24″)
|
21mm (0.83″)
|
ER 25
|
34mm (1.34″)
|
26mm (1.02″)
|
ER 32
|
40mm (1.57″)
|
33mm (1.3″)
|
ER 40
|
46mm (1.81″)
|
41mm (1.61″)
|
ER 50
|
60mm (2.36″)
|
52mm (2.05″)
|
TG Collets
|
L
|
A
|
TG 75
|
47mm (1.85″)
|
27mm (1.06″)
|
TG 100
|
60mm (2.36″)
|
35mm (1.38″)
|
TG 150
|
76mm (3″)
|
51mm (2″)
|
SYOZ / EOC Collets
|
L
|
D
|
EOC 8
|
26mm (1.026”)
|
14.4mm (0.567″)
|
SYOZ 20
|
34mm (1.34″)
|
20mm (0.78″)
|
RDO 20
|
34mm (1.34″)
|
20mm (0.78″)
|
407E
|
34mm (1.34″)
|
20mm (0.78″)
|
EOC 12
|
34mm (1.34″)
|
20mm (0.78″)
|
SYOZ 25
|
52mm (2.06″)
|
35mm (1.38″)
|
RDO 35
|
52mm (2.06″)
|
35mm (1.38″)
|
462E / SYOZ 25
|
52mm (2.06″)
|
35mm (1.38″)
|
EOC 32
|
60mm (2.36″)
|
43.7mm (1.72″)
|
DA Collets
|
L
|
A
|
DA 180
|
1.625″
|
1.035″
|
DA 100
|
1.438″
|
0.769″
|
DA 200
|
1.188″
|
0.531″
|
DA 300
|
1.000″
|
0.375″
|
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