MARS-TECH ER NUT ER20 A/M/UM TYPE pack of 1
MARS-TECH ER NUT ER20 A/M/UM TYPE pack of 1 - is backordered and will ship as soon as it is back in stock.
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Description
Description
Both types hold all ER20 collets from 1 mm to 14 mm
Made from alloy steel hardened to 54 – 56rc
Precision ground ID thread and taper
ER20A Has an id thread of – M25*1.5P
ER20A Outside diameter is 34 MM
Normal key to tightening
internal cam removes collet when unscrewed
MARSTECH CODE IS ER20A HEX TYPE NUT
ER20M Has an id thread of 24mm X 1.0 pitch
ER20M Outside diameter is 1.102 inches (28mm)
Outside has castle notches for tightening
ER20M-Wrench works on this collet nut
MARSTECH CODE IS ER20M TYPE NUT