Machine Taps Metric with Coloured Ring
GREEN RING Machine taps
Machine taps are suitable for non abrasive materials up to 1000 N/mm², unalloyed and low alloyed steel for through holes.
- Copper, Malleable cast iron
- Brass and bronze, long-chipping
- Aluminium-alloys, long-chipping
- Zinc and Magnesium alloys
- Plastics and thermoplastics
- Variations from M3 to M20
GREEN RING PM Machine taps
Machine taps are suitable for non abrasive materials up to 1000 N/mm², unalloyed and low alloyed steel for through holes.
Advantages HSSE-PM-TiN Machine taps:
The HSS-E-PM-TiN machine taps have an increased wear resistance and toughness. Furthermore the TiN-coating improves anti-friction properties, thereby improved wear-resistance and reduced tendency of build-up edge.
- Steel, unalloyed and low alloyed, short-chipping
- heat resistant steel, short- and long-chipping
- Steel, cementation and heat treatable, short-chipping
- Stainless steel, short- and long-chipping
- Brass and bronze, long-chipping
- Aluminium-alloys, long-chipping
- Zinc and Magnesium alloys
- Plastics and thermoplastics
- Copper, Malleable cast iron
- Variations from M3 to M16
BLUE RING Machine taps
Machine taps are suitable for non abrasive materials up to 1200 N/mm², unalloyed and low alloyed steel for through holes.
HSSE Machine taps with TiCN coating
Machine taps with outstanding wear-resistance due to improved hardness and toughness. Intensive and optimum cooling essential as reduced heat resistance.
- heat resistant steel, short-chipping
- Steel, cementation and heat treatable, short-chipping
- Stainless steel, short-chipping
- Iron, spheroidal graphite
- Brass and bronze, short-chipping
- Aluminium-alloys, short-chipping
- Magnesium alloys
- Titanium, short-chipping
- Variations from M3 to M20
WHITE RING Machine taps
Machine taps are suitable for stainless steel (INOX), long-chipping up to 1000 N/mm² and for chrome-nickel alloys.
HSSE Machine taps with steam tempered (VAP) surface:
An iron oxide film is created on the tool surface by heat treatment. This improves the adhesion of the coolant and as a result helps to prevent cold welding of the chip to the tool surface.
- heat resistant steel, long-chipping
- Stainless steel, long-chipping
- Titanium, long-chipping
- Variations from M3 to M20
BLACK RING Machine taps
The VOELKEL HSS-E machine taps with black ring are especially suitable for cast iron (GG) and spheroidal cast iron (GGG).
More recommended applications:
- Brass and bronze, long-chipping
- Plastics and thermoplastics
Machine taps with nitrided surface:
The surface hardness is increased by enriching the surface of the tap with nitrogen. This results in high abrasion resistance and improved anti-friction properties.
- Machine taps (black-ring) DIN 371/376 M3-M20
YELLOW RING Machine taps
The VOELKEL HSS-E machine taps with yellow ring are especially suitable for aluminium alloys (long-chipping).
- Machine taps with 40° right-spiral
- for blind holes
- Taps with two flutes
- Machine taps (yellow-ring) DIN 371/376 M3-M16
ORANGE RING Machine taps
The VOELKEL HSS-E machine taps with orange ring are especially suitable for for brass (Ms), short-chipping as well as for through and blind holes.
- Machine taps (orange-ring) DIN 371/376 M3-M16
RED RING Machine taps
Due to the very robust execution and the special profile of the flutes this Machine Tap is suitable for extreme applications. The lead Form A and an additional short lead make working easier.
- Steel and tool steels over 1200 N/mm²
- Taps for short-chipping materials
- Plastics, thermosetting
- for through and blind hole threads
- Machine taps (red-ring) DIN 371/376 M3-M16




























