Snappy Drill and Counter Sink Set, 5 pc

Combination drill pilot, and countersink
82° countersink angle, hardened set screw for length adjustment
Alloy steel for long cutting life
1/4" standard hex shank, fits all quick change chucks or standard drills
Includes: 5/64" (for #4 screws), 3/32" (for #6 screws), 7/64" (for #8 screws)
1/8" (for #10 screws) and 9/64" (for #12 screws) with Allen wrench