3- 1 7/8" bits 1- 1 3/4" BIT & 1- 1 5/8" BIT. Comes with what looks like an adapter as well, and it doesn't fit any of these bits. Size doesn't match up, as shown in the last picture.

     If you have any questions, feel free to ask. Shipping will be a usps priority flat rate bubble mailer. Thanks for looking and happy holidays.