PRO M18 X 1.5P Taper And Plug Set

A taper tap has a chamfered end (about 6-8 threads) that gradually increases the diameter, making it easier to start a thread and align the tap. A plug tap has a shorter chamfer (about 3-4 threads) and is used after a taper tap to finish the threads, especially in through holes.

For an M18 x 1.5P tap, the recommended pilot hole drill size is typically around 16.5mm. Always consult a thread chart for precise recommendations based on your specific application and material.

This tap set is generally intended for softer metals like aluminum, brass, and mild steel. Tapping hardened steel usually requires specialized taps, slower speeds, and appropriate lubrication or cooling.

Use cutting fluid liberally. It lubricates the tap, reduces friction and heat, and helps to flush away metal chips, all of which are crucial for clean threads and extending tap life.

Wipe them clean with a rag to remove all metal chips and cutting fluid residue. A brush can be helpful for stubborn chips. Ensure they are completely dry before storage.

'M' indicates a metric thread. '18' is the nominal diameter in millimeters (18mm). '1.5' is the pitch, meaning the distance between thread crests is 1.5mm.

Ensure you are using sufficient cutting fluid, not forcing the tap, and backing it out regularly to clear chips. Verify the material hardness is appropriate for standard tapping.

Check that you are using the correct tap size (M18 x 1.5P). Ensure the starting hole is drilled to the correct diameter and depth. Use cutting fluid and maintain a steady, consistent turning motion.

Use the taper tap first. Ensure the hole is clean and the tap is aligned perfectly perpendicular to the surface. Apply gentle downward pressure.

Stop immediately. Back the tap out counter-clockwise a half-turn or full turn, then resume forward motion. This helps to clear chips and prevent binding.