10 Piece, Drill Drive Set, Black Oxide Drill Bits Contains 1 Each Of The Following: 1/16",3/32", 1/8", 5/32",1/4", 135 Split Point, Jobber Length, Black Oxide Tempering Treatment Reduces Frictional Resistance & Improves Chip Flow, Recommended For Drilling Wood, Plastic, Wallboard, Plywood & Soft Metals, Aluminum, Brass & Bronze, For Occasional Use In Soft Metals, Power Screwdriver Bits Contains 1 Each Of The Following: #1, #2, #3 Phillips, #8, #10 Slotted, Heat Treated & Tempered For Maximum Performance.