The Walter 1.35 mm High-Speed Steel Jobber Drill Bit (Model 5058497) is engineered for precision drilling in a variety of materials, including cast iron, steel, aluminum, brass, bronze, copper, graphite, plastics, synthetic materials, stainless steel, super-alloys, and titanium. With a 40 mm overall length and a 118, point angle, this drill bit ensures accurate and efficient drilling operations. The right-hand cut and spiral flute design facilitate effective chip removal, enhancing drilling performance and extending tool life. The straight shank design allows for easy chucking, and the uncoated high-speed steel construction provides durability and resistance to wear. This drill bit is manufactured to DIN 338 standards, ensuring consistent quality and performance. Its 1.35 mm diameter and 1.3 mm shank diameter make it suitable for applications requiring precise hole sizes. The 118, point angle is ideal for general-purpose drilling, offering a balance between cutting speed and hole quality. The right-hand cut and spiral flute design are optimized for efficient chip removal, reducing the risk of clogging and improving overall drilling efficiency. The straight shank design ensures secure chucking, minimizing the risk of slippage during operation. The uncoated high-speed steel construction offers a combination of hardness and toughness, making it suitable for drilling a wide range of materials. The drill bit's overall length of 40 mm provides adequate reach for various drilling applications, while the flute length of 18 mm allows for effective chip removal in deeper holes. The maximum drilling depth of 15 mm makes it suitable for applications requiring shallow to medium-depth holes. The drill bit's depth-to-diameter ratio of 8xD indicates its suitability for drilling holes with a depth up to eight times the diameter, ensuring stability and accuracy during drilling operations. The drill bit's point length of 0.4 mm and drill point type of conical point contribute to precise hole formation and reduced thrust during drilling. The drill bit's decimal equivalent of 0.0531 and drill diameter tolerance of H8 ensure dimensional accuracy and consistency in hole sizes. The drill bit's shank length of 21.32 mm provides sufficient length for secure chucking and effective torque transmission during drilling operations.