For use with all impact drivers; All accessories fit standard 1/4″ hex locking collet; Includes durable clear plastic storage case with carrying handle; Set includes: ; Five 2″ magnetic nut drivers (1/4″, 5/16″, 3/8″, 7/16″ & 1/2″); Five 2″ Phillips(R) power bits (1 PH1, 3 PH2s & 1 PH3); Four 2″ square power bits (1 SQ1, 2 SQ2 & 1 SQ3); Three 2″ star power bits (T15, T20 & T25); Three 2″ slotted power bits (6-8, 8-10 & 10-12); Four 4″ power bits (2 PH2s, 1 SQ2 & 1 T25); Two 2″ socket extensions (1/4″ & 3/8″);