Allows you to make your screws & Fastcaps flush Great for countersinking PowerHead screws & Fastcaps, recessing magnets Ball-bearing stop collar controls recess depth & allows the collar to stop spinning when it comes in contacts with the surface Adjustable 1/8" pilot bit Micro depth adjustment Includes a 9/16" carbide cutter Includes (8) PowerHead screw samples & (16) Fastcaps Product Description Specs The "FlushMount Drill Bit System" by FastCap allows you to make your screws & Fastcaps flush. The drill bit system incorporates a unique ball-bearing stop collar that controls the recess depth of the drill & allows the stop collar to stop spinning when it comes in contact with the surface. Includes a 9/16" carbide cutter (3/8" & 18 mm available separately). Product Drill Bit System Overall Size Model # FastCap FlushMount Drill Bit System 3 - 1/8" x 1 - 5/8" FC.DB.CB.9/16.MICRO