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If another brand has the same insert
08 is the radius for these inserts
General Guidance for choosing facemill size is
Outside has castle notches for tightening
it’s important to select the appropriate scale that will provide results between 10 and 90 units
MARS-TECH ER NUT ER20 A/M/UM TYPE pack of 1 endmill If another brand has theBoth types hold all ER20 collets from 1 mm to 14 mmMade from alloy steel hardened to 54 56rcPrecision ground ID thread and taperER20A has an ID thread of M25*1. 5PER20A Outside diameter is 34 MMNormal key to tightening The internal cam removes the collet when unscrewedMARSTECH 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
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