Product details:

Bosch PCL101 Specifications: Hole saws: 1", 2-1/8", 7/8" Spade Bit: 7/8" Materials Cut: Metal, Wood, Plastic Bosch PCL101 Includes: (1) Mandrel with pilot bit (3) Hole saws (1) Spade bit (1) RPM chart Bosch PCL101 Features: One mandrel fits all sizes up to 6" Fast easy hole saw changes Also accepts 1/4" hex drills and power bits Easy plug removal Super fast cutting tooth design Heavy duty hex shank design won't wobble Bi-metal construction for duribility For use with Power Change mandrel