Carbon Steel Hand Tap Set

• Taps are used for cutting internal threads in predetermined holes
• These perform best in materials where the cutting action results in chips which break up readily and do not present problems of chip disposal
• Taps are usually used in sets of 3 (taper, second and bottom)
• All taps are right hand
• Taper used to provide a quick and easy start, but this will not cut the thread down to the bottom of the hole
• Second used to increase the size of the cut
• Bottom used for follow through right to the bottom to obtain full depth of thread 
• M4 x 0,7