The sealey ak219 is a comprehensive 42-piece bit and driver set designed for professional tradespeople and serious diy users requiring versatile fastening solutions across automotive, mechanical and general workshop applications. Manufactured from premium chrome vanadium 6150 steel, each bit is precision hardened to 52-53 hrc and tempered for exceptional strength and durability. This professional-grade heat treatment ensures the bits resist wear and deformation even under high torque applications, making the set ideal for mechanics, vehicle technicians and maintenance engineers working with modern fastener types. The set provides extensive coverage with eight trx-star bits t20-t60 , seven metric hex bits 4-12mm , and five spline bits m5-m12 , each supplied in both 30mm and 75mm lengths for improved access in confined spaces. Two drive adaptors 3 8 and 1 2 square drive to 10mm hex allow seamless integration with existing ratchets and torque wrenches, making this an excellent addition to any professional tool kit. The high-impact storage case features an innovative inclined tray design that presents each bit at an angle for quick identification and selection, reducing downtime during fastener changes. This practical organisation system keeps bits secure during transport whilst maintaining workshop efficiency. Features and benefits: chrome vanadium 6150 steel construction hardened to 52-53 hrc for superior durability dual length bits 30mm and 75mm provide versatility for dif...