RTO Collets
RTO (OZ) COLLET CLAMPING RANGE
  Bore Range - d Clamping Capacity      
Collet Type From To  Steps From  To Collapse  D L
RTO25(OZ 16)  2 16 0.5 1.5 0.5 25.5 40 40
RTO35(OZ 25) 2 25 0.5 1.5 0.5 35.05 52 52
RTO44(OZ 32) 4 32 0.5 3.5 0.5 43.7 60 60
 
    RTO (OZ) COLLET CONCENTRICITY - AS PER DIN 6388
Metric
Clamping Range d   Maximum T.I.R.
Min Max L Precision DIN 6499 High Precision DIN 6499
1 1.6 6 0.015 0.008
1.6 3 10
3 6 16
6 10 25
10 18 40 0.02 0.01
18 24 50
24 30 60
30 50 80 0.03 0.02