Description Features: Their short length makes them ideal for tight spaces and drilling shallow holes Single cutting edge and single spur (ensuring clean hole edges) Self-feeding – the thread at the end of the drill bit automatically grips into the workpiece and moves deeper without additional pressure Specifications: ⌀ Length Spiral Length 6 mm 90 mm 50 mm 9 mm 100 mm 60 mm 12 mm 100 mm 60 mm Shaft: 6.35 mm hexagonal Sharpening: Can be sharpened with diamond-shaped or thin flat metal files (both classic and diamond files are suitable) We recommend regularly cleaning the drill bits from residue, lubricating with vegetable-based oil to prevent corrosion, and storing in a dry place (steel is susceptible to rust) Made in Japan – STAR-M
