Felo XL-Strongbox is a 12-piece screwdriver set designed for professional electricians. The set includes an ergonomic handle, a fastening bit, and 10 dielectric bits suitable for electrical work up to 1000V, with each bit individually tested for safety. The hardened slotted and Phillips bits are engineered for durability and high performance. A sturdy plastic storage case with a latch ensures easy organization and transportation, with dedicated slots for every piece. The slim design of the bits allows access to tight spaces.