• High-speed HSS 4341 double straight flute step drill.• Double straight flutes for efficient swarf clearance.• Allows clog-free precision drilling of fourteen different size holes between 4-30mm with just one bit.• Hole Sizes: 4-30mm in 2mm increments.• Supplied in plastic storage case.High-speed HSS 4341 double straight flute step drill. Double straight flutes for efficient swarf clearance. Allows clog-free precision drilling. Supplied in plastic storage case.• High-speed HSS 4341 double straight flute step drill. • Double straight flutes for efficient swarf clearance. • Allows clog-free precision drilling. • Hole Sizes: 4-30mm in 2mm increments. • Supplied in plastic storage case. • Model No. AK4745Technical Specification:Nett Weight: 0.14kgSize Coverage: #3; 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30mmDimensions: Length: 35mm x Height: 125mmWeight: 0.162KgWarranty: Consumable