A2-5 16C Spindle to 5C Collet Adapter

Replacement part for 16 00001855C and 16A00001855C.

Collet adapters let you use smaller collets in machines with larger collet seats. Units are available to adapt 5C collets to 16C spindles, 16C collets to 20C and 25C spindles and 16C step chucks to 20C spindles. These units are valuable when you do not have the proper size standard collet for the machine but do have the proper size in a smaller style collet. Do not consider this unit when doing precision work. Because of the number of parts in the assembly, the TIR of the machined diameters to the chucked diameters may be unacceptable. This system should not be considered when doing many collet changes a day. It may take from 15 to 30 minutes to change a collet. It is more cost effective to purchase the proper style collet for the machine tool.