Unique Bargains High Speed Steel Metric Straight Flute Thread Tap and Titanium Coated Twist Drill Bit Set 4 Pcs M3 x 0.5 + 3mm

Thread tap adopts a straight flute design, with clear threads and no burrs. Screw tap provides downward chip removal, fast and precise tapping, suitable for through holes or shallow blind holes. Machine tap is used in drill presses, tapping, CNC, and milling machines. Not recommended for hand use and electric drill tapping. The twist drill bit adopts a spiral flute chip space design to remove chips quickly and cleanly. Cutting edges provide neat and smooth cuts. Use an appropriate lubricant (such as cutting fluid or oil) to reduce friction and heat build-up. 6542 (M2) high-speed steel tap and drill bit set offers excellent heat resistance and hardness for durability and longevity, and good cutting performance for clean, precise holes. Titanium-coated drill bit has enhanced hardness, corrosion and rust resistance, heat resistance, and reduces friction for smoother and faster drilling. The uncoated thread tap is great for a wide range of applications. Tap and drill bit set is widely used for cast iron, aluminum, stainless steel, carbon steel, aluminum alloy, bronze, and hard plastics. Use with tapping oil to achieve higher-quality threads and more durable taps. The force must be uniform in tapping operations. Drill holes with a twist drill bit first, then tap with a thread tap. The tapping angle should be 90 degrees vertical and stable. The higher the hardness, the slower the speed. Fast speed with small torque; slow speed with high torque. The tapping depth should not exceed 1.5 times the diameter of the tap (for example, the diameter M5x0.8 is about 5mm, the depth should not exceed 7.5mm).