DeWalt DWAX100 31pc Screwdriving Set consists of (31) S2 modified steel bits for increased durability. The extra small Tough Case is perfect for portable and organized storage of this set. The magnet bit tip holder accepts 1-inch screwdriving bits. What's Included: 1 in. PH bits: (2) PH1 (6) PH2 (2) PH3; 1 in. SQ bits: (2) SQ (6) SQ2 (2) SQ3; 1 in. SL bits: SL6 (3) SL8 SL10; Star bits: T15 (2) T20 (2) T25 and extra small tough case for portable and organized storage.