GG |
For cast iron – iron is a very abrasive material, therefore to increase tool life the taps are always surface treated or coated to resist the abrasion. The thread limit for this range is 6HX, which is high limit of the 6H tolerance allowing for longer wear life. |
Straight flutes with low rake angle |
TiCN Plasma Nitride Ni |
UNI |
For normal, general purpose type materials – suited to a wide range of materials, with normal rakes & high relief’ s. However tap material is powder metal high speed steel( PMHSS), which due to its finer grain structure than that of conventional HSS, higher hardness can be achieved with excellent toughness, along with TiAlN surface coating allowing for better tool life than normal taps. |
Normal rake angle & high thread relief |
Bright TiAlN |
|
VA |
For stainless and tough steels – to avoid clogging in tough, long chipping materials such as stainless steel, it is essential that the chip flows continuously in an axial direction. Best suited to rigid tapping applications due to high thread relief. TiCN & TiN coating has proven to be best suited for these materials. |
High rake angle & thread relief |
TiCN Blu |
|
VAPM |
For stainless and tough steels – geometry similar to VA range, however tap material is powder metal high speed steel( PMHSS), which due to its finer grain structure than that of conventional HSS, higher hardness can be achieved with excellent toughness, allowing for better tool life than VA taps. |
High rake angle & thread relief |
TiCN |
|
H |
For hard materials forming short chips – the low rakes & relief’ s combined with a hard surface coating, allow excellent tool life. |
Low rake angle & thread relief |
TiCN |
|
W |
For soft materials – due to the very high rake angle with a low thread relief, allows for excellent chip flow & gauging in soft materials. |
High rake angle & low thread relief |
Bright CrN |
|
AI |
For malleable aluminium with long chips – to avoid clogging when threading in aluminium which forms long chips, it is essential that the chip flows continuously in an axial direction. Generally these taps have 1 less flute than normal taps & therefore have larger flute space, which more adequate for large volumes of chips to help avoid clogging. |
High rake angle, high helix, 2 flutes, low thread relief |
Bright Plasma Nitride |
KL-TECH s. r. o | www. klte. cz |