4. Tools with bore

4.4 Tooling systems for special profiles
4.4.3 Profix-Plus

Unique construction principle

ProFix is different from all other universal profiling tools. Its unique features include constant profile and diameter even after resharpening as the profile knife thickness decreases. The clamping face stop maintains the knife’s precise radial position. The patented knife seating guides the resharpened knife precisely into the same position in the tool body.

The modular system

ProFix tools have different diameters of tool bodies to match the machines. Depending on the production process and the end-product, the bodies carry between two to six profile knives. A single tool body can be used for knives with completely different profiles, or alternatively, the same profile knife can be mounted on different sizes of tool bodies. This modular system structure and the variety of tool combinations make ProFix an unbeatable all-purpose system for just about every profiling task on either stationary or through feed machines.


Examples of different profile knives that can be used in different sizes of tool bodies. Mult-purpose, usable on different machines.

Impressive versatility

These are just a small selection of the wide variety of shapes that can be produced with the modular ProFix Plus system. Similar knives with different profiles can be used in different bodies to suit the type of machine. These features mean a level of versatility and efficiency unmatched by any other tooling system. The all-purpose concept, and the immense scope it offers means that widely varying demands can be satisfied. The cutting geometry and the cutting materials are matched to the individual requirements of the specific material.

Quality and easy handling

Easy handling is a notable benefit of the ProFix-Plus system. But product quality is an equally important advantage! Further development of the ProFix-Plus knife has taken it to exceptional standards of cut quality. Leitz’s special ‘reptile’ ground finish and polished face guarantee razor-sharp cutting edges, and the knives can be resharpened with no loss of quality.

No adjusting devices or special tools needed for knife changes.

No adjustment to machine settings after resharpening, as often necessary with other cutting systems. ProFix users do not need a measuring stand to check the tool measurements and test pieces are unnecessary to check the workpiece dimensions.


Just loosen the clamping screw, take out the knife, insert the replacement and retighten the screw. The quickest and easiest knife change available!

ProFix F – even more flexible in use

‘F’ stands for even greater flexibility. New ProFix profile knives in different grades of tungsten carbide suitable for cutting widths up to 100 mm. The ProFix knives can be positioned at any point in the tool body; narrow knives can be used in wide tool bodies with ease. The constant diameter tool design means machine set-up and down-time during a profile change are minimal. ProFix F is the ideal solution for all four-side planers & moulders, for double-end tenoners and CNC routers/machining centres where the customer demands a wide range of profiles combined with frequent tool changes.

Knives can be inserted in the machine from left or right as needed.

ProFix F in a VariPlan planerhead, for example used to produce door frame elements of various widths.
ProFix S – for even greater speed and accuracy

Typical assembled tools have run-out tolerances between 0.02 and 0.07 mm at the cutting edges. This means the surface finish is produced by a single cutting edge, which limits the feed speed if an acceptable quality is to be achieved, e.g. to 12 metre/min at a spindle speed of 6000 RPM. ProFix S now offers an entirely new standard of run-out and concentricity on existing production machinery.

Two profiles, both machined at a feed rate of 36 m/min (n = 6000 min-1, number of teeth = 4).
Left using a conventional tool; Right using ProFix S. Without profile jointing.

ProFix S has fine adjustment to the cutting edges to keep the run-out under 5 μm. Run-out compensation is achieved by radially altering the position of the knife by a hydro system in the tool body.

Radial adjustment of the knife position by a hydro system corrects the run out tolerance at the cutting edge to under 0.005 mm.