Specifications and Procedures:
1. Ensure the three small retaining pins are in place before using the collet.
2. Secure the collet using the clamping device.
3. Drill and possibly grind the bore to the desired diameter.

Emergency Collets:
Emergency collets are available for urgent needs requiring special diameter clamping. These collets have a hardened and ground shank with a soft head, allowing for custom boring directly on the machine, ensuring high concentricity and maintaining the same spring force as standard collets.

Usage Instructions:
1. Remove the collet from the spindle and take out the three small pins.
2. Clean the collet thoroughly before use.

Material and Design:
Brass emergency collets are available for clamping delicate pieces. These collets are pre-slotted with a small central bore, allowing for final machining to the required diameter or shape on the lathe.

Product Availability:
Emergency collets are available while stocks last, with various types and specifications listed in the document.