Compatible with materials ranging from steel to aluminium (ISO material groups P/M/K/N), Prototyp TC115 blind-hole tap and TC216 through-hole tap have HSS-E bodies and are available with TiN or vaporized coating. Vaporized variant increases process reliability, particularly regarding tough ISO M materials, while TiN coating promotes tool life and cutting speed. While TC115 has 45° helix angle for thread depth of 3xD and C form chamfer, TC216 features spiral point for forward chip evacuation and thread depth of 3.5xD.