"55 Piece Computer Tool Kit. Great to upgrade, maintain, and repair computer systems. Unique bits offer 2 sizes in 1 bit. The combination design uses both metric and standard measurement in one. The combination sizes include 3/16""(5mm), 1/4""(6mm), 5/16""(8mm), 11/32""(9mm), and 3/8""(10mm). Kit also includes: fully flexible ratchet driver (3-way latch), 6 piece precision screwdriver kit, 2 batteries (AA), wire stripper, brush, Exacto knife, diagonal cutting pliers, chip extractor, needle nose pliers, 3-pronged parts retriever, electric voltage tester, flashlight, crimp and strip wire stripper, spare parts container (with parts),surface cleaning wipes, cable ties,anti-static wrist band, Torx Bits (T8, T10, T15, T20, T27), adapter bit, #1pozi driver bit, #4 and #6 slotted bits, square bits S0, S1, S2, S3, #0 and #2 Philips bits, insulated tape and vinyl zipper case."