Our part # TEC-04225-5/16 The most accurate ER25 collet in the industry- average 0.0002 Total Indicated Runout (T.I.R.)! Clamping Range .273-.312 Precision ground and hand inspected. Only the very best materials and grinding techniques used! 100% Satisfaction Guaranteed! Others T.I.R. 0.0060" - TECHNIKS T.I.R. 0.0002" Gain 10% tool life for every 0.0001" improvement in T.I.R.

Our part # TEC-04225-5/16 The most accurate ER25 collet in the industry- average 0.0002 Total Indicated Runout (T.I.R.)! Clamping Range .273-.312 Precision ground and hand inspected. Only the very best materials and grinding techniques used! 100% Satisfaction Guaranteed! Others T.I.R. 0.0060" - TECHNIKS T.I.R. 0.0002" Gain 10% tool life for every 0.0001" improvement in T.I.R.