Key benefits - Left-hand straight flute tap for through holes with thread size M16 x 2, thread length 33 mm, and square drive 13 mm; cutting direction is left (reverse) for left-hand thread applications. - Straight groove design with down-chip removal for clean threads, faster cutting, and improved accuracy. - Titanium coating provides excellent corrosion resistance, enhanced wear resistance and hardness, and reduces friction. Tool made from M35 cobalt high speed steel with high hardness, high red hardness, and good toughness. - Wide material compatibility: suitable for drilling and tapping through holes in stainless steel, aluminum, punching steel, bronze, and hard plastics. - Easy to use on drills, thread-cutting machines, CNC and milling machines; use with thread oil for higher quality threads and longer tool life. Specifications - Thread size: M16 x 2 - Thread length: 33 mm - Square drive: 13 mm - Cutting direction: left-hand (reverse) - Coating: titanium - Substrate: M35 cobalt high speed steel - Hardness: HRC 65-66 Performance and compatibility - Suitable for through-hole tapping in a variety of materials including stainless steel, aluminum, steel, bronze, and hard plastics. - For best results, use with thread oil to achieve higher quality threads and longer tap life. Recommended feed speeds (by material) - General steel: 6-15 m/min - Harder steel: 5-10 m/min - Stainless steel: 2-7 m/min - Cast iron: 8-10 m/min Use scenarios - Scenario 1: Tapping a through hole in a stainless steel frame on a CNC milling machine, using an M16 x 2 left-hand tap with appropriate thread oil. - Scenario 2: Creating a through-hole thread in an aluminum housing or die-cast component requiring a left-hand M16 x 2 thread. - Scenario 3: Repairing or producing through-hole threads in cast iron or bronze parts during maintenance or fabrication projects.