Flute and groove geometries
Straight flutes
These taps are used on steels with normal strength and toughness (R=750 N/mm2) as well as on short-chipping abrasive materials (grey cast iron, bronze, etc.).
Spiral flutes, 15° righthand spiral
These taps improve chip evacuation and are well suited when tapping blind holes of medium depth on tough materials.
Spiral flutes, 40°/45° righthand spiral
The high helix angle ensures the evacuation of chips from deep blind holes.
Spiral flutes, 40° righthand spiral, for light alloys
The large flutes and high helix angle ensure efficient chip removal on long-chipping light alloys such as aluminium.
Straight flutes with interrupted threads
For tapping soft and mild materials such as iron, aluminium etc. The interrupted threads avoid chips sticking to the thread flanks and consequent damage of the tap.
Forming taps without oil grooves
These tools produce threads through plastic deformation of the workpiece material. No chips are produced during the tapping process.
Forming taps without oil grooves
These tools produce threads through plastic deformation of the workpiece material. No chips are produced during the tapping process.
Forming taps with oil grooves
The oil grooves improve lubrication in the chamfer area making these taps suitable for threading deep holes.
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