UN coarse (UNC) taps have fewer threads per inch than UN fine (UNF) taps. Compared to UNF taps, UNC taps perform better in threading applications on brittle materials and are less likely to cross thread. Coarse threads can also withstand more physical abuse than fine threads. The bright finish on these taps provides a smooth, polished surface.

These taps come in standard sizes expressed in millimeters. The bright finish on these taps provides a smooth, polished surface.

The TiN coating on these taps protects them from wear and allows them to be used at higher speeds than taps with a bright finish.

UN fine (UNF) taps have more threads per inch than UN coarse (UNC) taps. Compared to UNC taps, UNF taps perform better in threading applications on thin-walled workpieces and hard materials. Fine threads provide more tensile strength and shear strength than coarse threads. The bright finish on these taps provides a smooth, polished surface.

The black-oxide finish on these taps retains lubricants to improve the taps' wear resistance and chip flow. Black-oxide taps should only be used on ferrous metals.

The hardlube coating on these taps protects them from wear. Sometimes called hardslick, it has an inner layer of titanium aluminum nitride (TiAlN) and an outer layer of tungsten carbide/carbon (WC/C). The TiAlN layer withstands high temperatures and protects the taps from wear. The WC/C layer has a low coefficient of friction and helps prevent chips from sticking to the tool in dry-machining applications. These taps meet DIN length standards and have a longer overall length than taps that meet ISO, ANSI, and JIS length standards. They also meet ANSI shank standards, which means they measure their shank diameter in inches and fit in standard tools used in the U.S.

Oversized taps have a slightly larger pitch diameter than standard taps. They are used to make threads in a hole before a coating or treatment is applied to the hole. Once the coating or treatment is applied, the threads will be reduced to the standard pitch diameter. The bright finish on these taps provides a smooth, polished surface.

The TiCN coating on these taps protects them from wear and is harder and more wear-resistant than a TiN coating.

The black-oxide finish on these taps retains lubricants to improve the taps' wear resistance and chip flow. Black-oxide taps should only be used on ferrous metals. These taps meet DIN length standards and have a longer overall length than taps that meet ISO, ANSI, and JIS length standards. They also meet ANSI shank standards, which means they measure their shank diameter in inches and fit in standard tools used in the U.S.

Oversized taps have a slightly larger pitch diameter than standard taps. They are used to make threads in a hole before a coating or treatment is applied to the hole. Once the coating or treatment is applied, the threads will be reduced to the standard pitch diameter. The black-oxide finish on these taps retains lubricants to improve the taps' wear resistance and chip flow. Black-oxide taps should only be used on ferrous metals.

The bright finish on these taps provides a smooth, polished surface. Taps that meet JIS standards have a shorter overall length than DIN and DIN/ANSI taps and measure their shank diameter in millimeters.

UN special (UNS) taps have different diameter and pitch combinations than taps with other unified thread standards. UNS taps typically have more threads per inch and create stronger threads than UN fine (UNF) or UN extra-fine (UNEF) taps. The bright finish on these taps provides a smooth, polished surface.

Oversized taps have a slightly larger pitch diameter than standard taps. They are used to make threads in a hole before a coating or treatment is applied to the hole. Once the coating or treatment is applied, the threads will be reduced to the standard pitch diameter. The TiCN coating on these taps protects them from wear and is harder and more wear-resistant than a TiN coating.

The TiN coating on these taps protects them from wear and allows them to be used at higher speeds than taps with a bright finish. Coolant-through taps have holes that allow coolant to flow to their tip to reduce heat and friction during threading tasks.

The TiAlN coating on these taps withstands high temperatures and protects the taps from wear. It allows the taps to be used at faster speeds than taps with a bright finish, and it resists cracks and oxidation better than TiN or TiCN coatings. These taps meet DIN length standards and have a longer overall length than taps that meet ISO, ANSI, and JIS length standards. They also meet ANSI shank standards, which means they measure their shank diameter in inches and fit in standard tools used in the U.S.