These are NOT collets. You can use them with Foredom Flex Shaft Handpieces or Micromotor Handpieces — as long as the handpiece has a collet. They are ‘step down’ adapters that fit inside a collet and allow the use of smaller shank size accessories. No need to change handpiece collets.
Use a Collet Adapter with collet-style handpieces to avoid changing collets for smaller accessory shank sizes. Precision machined adapter fits inside a rotary tool collet and allows the use of smaller shank size accessories – without changing the collet.
