The DEWALT DW2587 80 Piece Professional Drilling and Driving Set offers a variety of industrial screwdriving/fastening bits including the most common fitments as well as 17 black-oxide drill bits, up to 3/8-inch in size. The included magnetic drive guide helps reduce slipping and wobble, allowing users to work more efficiently and effectively. The kit comes with a magnetic bit-tip tray and professional case that keep things organized and provide maximum durability for all of the accessories.Features 80 piece set contains all common screwdriver bit sizes, most common drill bit diameters and nut setters in a large tough case for easy storage and portability Includes phillips, square recess, slotted and star bits with 1", 2" power bits and selected 3-1/2" bits Socket adapters for 1/4” and 3/8” sockets as well as three nut drivers: 1/4”, 5/16”, 3/8” Black oxide drill bits from 1/16" - 3/8" diameter Includes magnetic tray and storage case for loose accessories Specifications Included accessories:1" SDB #1 Ph 2 #2 Ph 6 #3 Ph 3 #1 Sq 2 #2 Sq 5 #3 Sq 2 #6 Sl 3 #8 Sl 3 #10 Sl 3 T10 1 T15 3 T20 5 T25 5 T30 1 T40 1 2" SDB #2 Ph 2 #2 Sq 2 #8 Sl 1 T20 1 T25 1 3-1/2" SDB #1 Ph 1 #2 Ph 1 #2 Sq 1 #8 Sl 1 Drill bits 1/6" 2, 5/64" 2 3/32" 2 7/64" 2 1/8" 2 9/64" 1 3/16" 1 13/64" 1 7/32" 1 15/64" 1 1/4" 1 3/8" 1 Nut drivers:1/4", 5/16", 3/8" one each Socket adapters:1/4", 3/8" one each Compact magnetic drive guide 2" magnetic bit tip holder Quantity: 80 Pieces Application: Drill / driver