The standard ER collet is the most widely used clamping system in the world.
Made from Alloy spring steel and fully hardened these ER collets are ideal for many machining applications including boring, milling, reaming, tapping, and grinding. Unless specified differently all of our ER collets feature a runout of 0.010 microns or less. , ER collet sizes start at ER8 through ER50.
ER20 series collets have a capacity of 1mm-14mm. Each ER20 collet has a range of (1 mm). The size indicated on the collet is the largest size it can hold and can be collapsed smaller within its collapse range of (0.9mm). For example, ER20-3mm can grab a round shank from 3mm diameter to 2.1mm diameter.
ER20 Collet follows DIN 6499 standard
The standard ER collet is the most widely used clamping system in the world
Made from EN-47 Alloy spring steel for spring action and fully hardened
ER-20 Standard Precision Collet with 10 microns run out
Install into an ER collet chuck or holder to tightly grip round-shank tool bits in milling machines
ER collets are ideal for many machining operations such as
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