Tap and Drill Bit Set, 4pcs M4 x 0.7 Metric Spiral Point Thread Screw Taps & 4pcs 3.3mm Twist Drill Bits, Titanium Coated/Roasted Yellow HSS-6542/M35 HSS-CO Tapping Threading Tool

4pcs Spiral Point Taps:Thread size: M4 x 0.7 (right hand); thread length: 15mm / 0.59"; square shank: 3mm / 0.12"; total length: 57mm / 2.24"4pcs Twist Drill Bits:Drill size: 3.3mm (right hand); cutting edge length: 28mm / 1.1"; shank dia.: 3.3mm / 0.13"; total length: 64mm / 2.52"Descriptions:Thread tap adopts spiral point and straight flute design, with clear threads and no burrs. Screw tap provides downward chip removal, fast and precise tapping, suitable for through-hole threads.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 offers high hardness, good toughness, excellent wear and heat resistance for durability. M35 cobalt high-speed steel drill bit offers improved hardness, wear resistance and cutting performance, as well as higher strength. Titanium coated tap offers enhanced hardness, corrosion and rust resistance, heat resistance, and reduces friction. Roasted yellow drill bit effectively removes oxidation on the metal surface, and increases corrosion resistance.Tap and drill bit set is widely for cast iron, aluminum, stainless steel, carbon steel, aluminum alloy, bronze and hard plastics. Use with tapping oil to get higher quality threads and more durable taps. Machine tap is used on drill presses, tapping/CNC/milling machines. Not recommended for hand use and electric drill tapping.Tips:Drill holes with a twist drill bit first, then tap with a thread tap. The cutting angle should be 90 degrees vertical and stable. Tapping depth should not exceed 1.5 times the diameter of tap.

• Tap and Drill Bit Set: 4pcs M4 x 0.7 (right hand) thread taps and 4pcs 3.3mm (right hand) drill bit. 6542 (M2) high speed steel tap offers high hardness, good toughness, excellent wear and heat resistance for durability. M35 cobalt high-speed steel drill bit offers improved hardness, wear resistance and cutting performance, as well as higher strength.
• Wide Applications: Thread tap & drill bit kit can create new threads or re-thread damaged or jammed threads. Spiral point tap is suitable for through-hole threads. Used for cast iron, aluminum, stainless steel, carbon steel, aluminum alloy, bronze and hard plastics. Use with tapping oil to get higher quality threads and more durable taps.
• Features: Threading Tap: Spiral point and straight flute design, clear threads and no burrs, downward chip removal, fast and precise tapping. Machine tap is used in drill presses, tapping/CNC/milling machines. Not recommended for hand use and electric drill tapping. Twist Drill Bit: Spiral flute chip space design to remove chips quickly and cleanly, Can provide neat and smooth cuts.
• Finish: Titanium coated tap offers enhanced hardness, corrosion and rust resistance, heat resistance, and reduces friction. Roasted yellow drill bit effectively removes oxidation on the metal surface, and increases corrosion resistance. Use an appropriate lubricant to reduce friction and heat build-up.
• Tips: Drill holes with a twist drill bit first, then tap with a thread tap. Tapping and drilling 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. Tapping depth should not exceed 1.5 times the diameter of tap.