59-in-1 Precision Screwdriver Bits SetOur complete 59 in 1 screwdriver bits set includes 56pcs bits in different types which is made from high grade chrome vanadium steel materials, high hardness, good toughness, sturdy and durable and their magnetic feature will remove the worry that the screws will fall down and you have to find them everywhere when you are pulling the screws out. Additionally, it comes with a 5. 12inches length flexible shaft and a 4. 6inches length adjustable