Tools | For Model 451 and 452 Wire Connectors, Wire-Nut, Wing-Nut, Twister, B-Cap & Wingtwist | Four Screwdriver Tips (#1 and #2 Phillips, 3/16" and 1/4" Slotted) | Pvc Block Is Used for Storing the Bits. the Bits May Be Used for a Variety of Applications and the Block May Be Placed Onto Any Screwdriver for StorageSouthern Tier Electric Supply