Tooth profiles
for thread turning

Tooth profile with universal profile shape
55⁰ or 60⁰ without cutting edges for the tooth tapers
Reduced inventory.
For various pitches in a limited range
Preferably one-off production.
Outside/core diameters must be accurately
pre-turned.

Full profile

Tooth profile with full profile shape
including tooth height.
For  burr-free precise threads in the specified pitch.
General applications

Machining allowance for outside/core diameter
around 0.1-0.15 mm/surface.

General, straight forward infeed in radial direction with metal
remover on both tooth flanks.

Even wear.

Primarily for small pictures of up to approx. 3mm.

Cast iron workpiece materials and strain-hardening steels,
particularly stainless austentic steel.

Modified flank infeed
                       

Optimized infeed at an angle of 3-5⁰ to the thread flank.

Good chip flow, smoother operation.

Preferably for larger pitches from approx.  4mm and
trapezoidal threads on numerically controlled machine tools.

Alternating infeed
                        
Combined radial and  / or alternating flank infeed.
Results in good tool life, with wear evenly distributed over
both flanks.

Mainly for coarse threads on suitably programmed NC
machine tools.