Standard Collet 1000 Series. Standard Mandrel 2000 Series. Click Here to View Chart for Std Collets and Mandrels. Click Here to View Std Collet Grip Ranges Std. Step Collet 1500 Series, Std. Mandrel 2000 Series Click Here to View Chart for Collet Part No. 1500- | Mandrel Part No. 2000- Click Here to View Std Collet Grip Ranges Heavy Duty Collet 3000 Series, Heavy Duty Mandrel 4000 Series. Click Here to View Heavy Duty Collet and Mandrel Sizing Chart Click Here to View Heavy Duty Collet Grip Range Heavy Duty Step Collet and Mandrel. Template Boss Jig Plate Collet