The Porter Cable Forstner Bits Set includes 7 pieces ranging in size from 1/4” to 1”, all designed for precision drilling with a no spin shank for secure fitting in the chuck. Made by the trusted brand Porter Cable, these drill bits are perfect for a variety of drilling tasks in the workshop or at home. The wooden box storage ensures easy organization and protection, making this set a must-have for any DIY enthusiast or professional tradesperson.