SNAPPY 25pc Countersink Drill and Driver Bit Set Countersinks: 5/64" x 3/8", 3/32" x 3/8", 7/64" x 3/8", 1/8" x 3/8", 9/64" x 1/2" Drill Bit Adapters: 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4" Industrial Driver Bits: #1PH x 2", #2PH x 2", #3PH x 2", #1SQ x 2", #2SQ x 2", #3SQ x 2" Quick-Change Chuck, 3/8" and 1/2" countersink stop collars, hex shank socket, 3/32" and 1/8" hex keys Rugged no-rip nylon pouch with carry handle, belt loop and small parts pocket