The bluespot 3 piece step drill set is a versatile collection of titanium-coated step drill bits designed for precision hole drilling across a wide range of materials. Manufactured from high-speed steel for increased durability and cutting power, each bit features a titanium coating that reduces friction and heat during use. The set covers drilling applications in aluminium, brass, copper, plastic, steel, and wood, making it a practical addition to any tradesperson's toolkit. With 2mm step increments and a combined size range of 4 32mm across the three bits, the set offers excellent flexibility for electrical, plumbing, and sheet metalwork applications where clean, accurately sized holes are essential. The bits are supplied in a robust metal storage case to keep them organised and protected between jobs. Features and benefits: high-speed steel construction for durability and cutting performance titanium coating reduces friction and heat build-up 2mm step increments for precise hole sizing suitable for aluminium, brass, copper, plastic, steel, and wood supplied in a robust metal storage case three-bit set covering 4 32mm diameter range contents: 1 x 5 step drill 4-12mm 1 x 9 step drill 4-22mm 1 x 10 step drill 4-32mm specifications: min. Size: 4mm max. Size: 32mm step increment: 2mm