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ER Spring Collets Metric Size


Unique 8°taper design affords highest gripping power.
True double angle, for extreme concentricity.
16 jaws giving powerful gripping and parallel clamping.
A unique self-releasing system is built into the collet and claming nut to eliminate cutting tools sticking in collets.
| Type | A | B |
| ER11 | 11.5mm | 18mm |
| ER16 | 17mm | 27mm |
| ER20 | 21mm | 31mm |
| ER25 | 26mm | 35mm |
| ER32 | 33mm | 40mm |
| ER40 | 41mm | 46mm |
| Metric | ||||||
| Size | ER11 Model# | ER16 Model# | ER20 Model# | ER25 Model# | ER32 Model# | ER40 Model# |
| 1mm | 204-1010 | 204-6010 | 204-7010 | 204-7210 | ||
| 1.5mm | 204-1015 | 204-6015 | 204-7015 | 204-7215 | ||
| 2mm | 204-1020 | 204-6020 | 204-7020 | 204-7220 | 204-3320 | |
| 2.5mm | 204-1025 | 204-6025 | 204-7025 | 204-7225 | 204-3325 | |
| 3mm | 204-1030 | 204-6030 | 204-7030 | 204-7230 | 204-3330 | 204-4130 |
| 3.5mm | 204-1035 | 204-6035 | 204-7035 | 204-7235 | 204-3335 | |
| 4mm | 204-1040 | 204-6040 | 204-7040 | 204-7240 | 204-3340 | 204-4134 |
| 4.5mm | 204-1045 | 204-6045 | 204-7045 | 204-7245 | 204-3345 | |
| 5mm | 204-1050 | 204-6050 | 204-7050 | 204-7250 | 204-3350 | 204-4135 |
| 5.5mm | 204-1055 | 204-6055 | 204-7055 | 204-7255 | 204-3355 | |
| 6mm | 204-1060 | 204-6060 | 204-7060 | 204-7260 | 204-3360 | 204-4136 |
| 7mm | 204-1070 | 204-6070 | 204-7070 | 204-7270 | 204-3370 | 204-4137 |
| 8mm | 204-6080 | 204-7080 | 204-7280 | 204-3380 | 204-4138 | |
| 9mm | 204-6090 | 204-7090 | 204-7290 | 204-3390 | 204-4139 | |
| 10mm | 204-6100 | 204-7100 | 204-7300 | 204-3400 | 204-4140 | |
| 11mm | 204-7110 | 204-7310 | 204-3410 | 204-4141 | ||
| 12mm | 204-7120 | 204-7320 | 204-3420 | 204-4142 | ||
| 13mm | 204-7130 | 204-7330 | 204-3430 | 204-4143 | ||
| 14mm | 204-7340 | 204-3440 | 204-4144 | |||
| 15mm | 204-7350 | 204-3450 | 204-4145 | |||
| 16mm | 204-7360 | 204-3460 | 204-4146 | |||
| 17mm | 204-3470 | 204-4147 | ||||
| 18mm | 204-3480 | 204-4148 | ||||
| 19mm | 204-3490 | 204-4149 | ||||
| 20mm | 204-3500 | 204-4150 | ||||
| 21mm | 204-4151 | |||||
| 22mm | 204-4152 | |||||
| 23mm | 204-4153 | |||||
| 24mm | 204-4154 | |||||
| 25mm | 204-4155 | |||||
| 26mm | 204-4156 | |||||
| 27mm | 204-4157 | |||||
| 28mm | 204-4158 | |||||
| 29mm | 204-4159 | |||||
| 30mm | 204-4160 |
Z&Y TOOL SUPPLY Co., Ltd. is a trading company of cutting tools,measuring tools,machine accressories and some machines worldwide. Established in 2010 and headquartered in Qingdao,Shandong, China.
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