General description SwissTech HSS Straight Shank Jobber Drill Sets are designed for precision drilling in various materials including steel, cast steel, grey cast iron, graphite, and malleable cast iron. This 25-piece set features a bright body with a TiN (Titanium Nitride) coating on the working part, enhancing durability and performance. Technical specifications Drill Size Range: 1.00mm to 13.00mm Size Increment: 0.5mm Material: High Speed Steel Finish/Coating: TiN Tipped Flute Construction: Ground Flute Drill Length Type: Standard Length Cutting Direction: Right Hand Standards Met: BS 328, DIN 338 Number of Pieces: 25 Compatibility and accessories Compatible with standard drill chucks Installation Insert the desired drill bit into a compatible drill chuck and secure tightly before use. Usage Ideal for drilling in steel, cast steel, grey cast iron, graphite, and malleable cast iron. Other information