Drills By TJR

• Each bit set comes with 3 drill bits of a combined 29 sizes to add to your drilling arsenal: 5 step drill (4, 6, 8, 10, 12mm) 9 step drill (4, 6, 8, 10, 12, 14, 16, 20mm) and 15 step drill (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm).
• Step drill set used for the use of holes in a variety of materials such as steel, fine metal (thickness 5 mm), wood, fine iron, plastic, aluminium, PVC, fibreglass and other materials.
• The two-flute spiral design on a step drill bit is a useful feature that can improve the efficiency, accuracy, and performance of the drilling process.
• Only one drill bit is required for drilling holes of different sizes, which can meet the requirements for processing holes with different diameters
• HSS-E M35 Cobalt is a type of high-speed steel that contains a certain amount of cobalt. Cobalt is added to high-speed steel to increase its hardness, heat resistance, and durability. The HSS-E M35 material has superior properties such as high toughness, wear resistance, and hot hardness, making it ideal for drilling hard materials such as stainless steel, alloy steel, and titanium. HSS-E M35 drill bits can also maintain their sharpness and cutting ability at high temperatures and under high loads.

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