Sealey Tap Set - M5 x 0.8mm - Taper & Plug - 2pc

A 4.2mm drill bit is typically recommended for an M5 thread.

The taper tap is tapered at the end to help start the thread. The plug tap has a shorter taper and is used to finish the thread to the bottom of the hole.

Use a cutting fluid suitable for the material you are tapping (e.g., oil-based for steel, water-soluble for aluminum).

Use the correct drill size, apply even pressure, use cutting fluid, clear chips regularly, and don't force the tap.

Yes, but be sure to use a cutting fluid specifically designed for stainless steel, and go slowly.

The storage case helps to keep the taps organized and protects them from damage and rust.

Replacement taps can be found from Sealey or other tool suppliers.

Ensure you are using the correct drill size, applying even pressure, using cutting fluid, and clearing chips regularly. If the tap is old or damaged, replace it.

Check that the tap is straight and the tap wrench is aligned. Ensure proper lubrication and use the correct tapping speed. Consider using a tap with a more aggressive cutting angle if the material is particularly hard.

Apply more cutting fluid. Make sure the tap is aligned properly. Try backing the tap out slightly to clear chips.