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WALTER Products
WALTER Aktiengesellschaft
Shell mills

corner radius milling cutter / solid / face / coated

MC341 Supreme – the new high-performance milling cutter specially designed for machining steel.

- Exceptional tool life and performance increases of up to 50% thanks to the innovative new Walter WK40TZ grade as well as a special coating process
- Long feed in steel materials (up to 1.5 × Dc)
- Low spindle load thanks to differential pitch
- Soft cutting action and optimal chip evacuation
- Back cutting reduces transitions when performing side face machining
- High level of process reliability due to stable core and optimised microgeometry
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corner radius milling cutter / solid / coated / for stainless steel
corner radius milling cutter / solid / coated / for stainless steel
MC251 series
WALTER Aktiengesellschaft
Shell mills
New solid carbide milling cutters increase output by up to 50 per cent

The milling cutters from Walter's new Advance product line increase tool life by up to 50%.

With this product line, the metal cutting specialist is setting a new benchmark in terms of cost effectiveness and profitability. This is very true of the MC251 Advance solid carbide milling cutters from Walter's Prototyp brand, which have the ideal geometry for machining stainless materials from material group ISO M an​d for secondary applications in ISO S materials. The new MC251 tool family is designed to operate most efficiently on machines having only an external coolant supply.

The MC251 product family comprises a tough carbide substrate (WK40RC), which has been specifically designed to provide a high level of machining reliability. And because the coating is made from a combination of titanium aluminium nitrate (TiAlN) and aluminium titanium (AlTi), not only is the tool's service life extended significantly, but it also exhibits particularly good anti adhesion properties, which means that the formation of build-up on the cutting edge is not significant.
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corner radius milling cutter / solid / finishing / shoulder
corner radius milling cutter / solid / finishing / shoulder
Protostar® N 50
WALTER Aktiengesellschaft
Shell mills
Walter Prototyp Protostar® N 50

One of the key requirements in modern production is for workpieces to display better surface finishes. The finishing end mills from Walter Prototyp have special geometries that cater to this requirement. Our geometry prevents chatter marks and produces smooth milling characteristics.

Facts and advantages:
- a 50° helix angle produces a soft cutting action and achieves the best surface finish on the workpiece
- good removal of chips due to the high helix angle, thereby preventing scratching of the machined surface on the component
- high-grade TiAlN coating for maximum tool life
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corner radius milling cutter / solid / roughing / finishing
corner radius milling cutter / solid / roughing / finishing
Supreme MC326
WALTER Aktiengesellschaft
Shell mills
Walter Prototyp Supreme MC326

Top performance with the new Supreme line.

Facts and advantages:
- A high level of process reliability due to the reinforced core and large chip clearance in the front
- The new WK40TF enables a maximum level of productivity with cutting data which is up to 50 per cent higher than conventional products on the market, and tool life which is up to 100 per cent longer
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corner radius milling cutter / solid / roughing / shoulder
corner radius milling cutter / solid / roughing / shoulder
MD133
WALTER Aktiengesellschaft
Shell mills
MD133 Supreme milling cutter family – specially designed for the dynamic milling strategy

- High process reliability in unmanned machining
- Maximum productivity due to optimal metal removal rate with reduced machining times
- Maximum tool life as the entire cutting length is used and wear behaviour is uniform
- High level of flexibility thanks to various groove widths and corner radii with one tool diameter
- No problems working with difficult-to-cut materials or under unstable conditions (machine, workpiece, clamping)
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corner radius milling cutter / solid / roughing / slot
corner radius milling cutter / solid / roughing / slot
Protostar® Qmax
WALTER Aktiengesellschaft
Shell mills
Walter Prototyp Protostar® Qmax

Thanks to its tough substrate and optimised geometry, the Protostar® Qmax ensures maximum metal removal rates, even when machining demanding materials. The tools are available with two different knurled profiles, the HR and the HNR profile. Due to its positive geometry, the HR profile is generally used more when machining in unstable conditions. The HNR profile is extremely solid and should therefore predominantly be used in stable conditions.

Facts and advantages:
- maximum metal removal rate
- internal cooling aids chip removal and increases process reliability
- very good roughed surface due to improved roughing profile
- all tools have the latest TiAlN coating, offering advantages for both dry and wet machining
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corner radius milling cutter / solid / slot / coated
corner radius milling cutter / solid / slot / coated
Proto-max™ Inox
WALTER Aktiengesellschaft
Shell mills
Walter Prototyp Proto·max™ Inox

A new specialist in the Proto·max™ family.

Facts and benefits:
- maximum machining volume up to 50 % higher in comparison with standard tools
- long feed up to 1 x Dc in stainless materials
- low-vibration running due to special asymetrical helix angle on alternating flutes and therefore optimum surface finish quality
- soft cutting action due to optimised microgeometry
- a high level of process reliability due to optimum chip evacuation; as a result of the internal coolant supply
- maximum tool life due to state-of-the-art TAA coating and internal coolant supply
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corner radius milling cutter / solid / slot / coated
corner radius milling cutter / solid / slot / coated
MC232
WALTER Aktiengesellschaft
Shell mills
A first for the Perform line

With the MC232 Perform product line, Walter is adding to its range of solid carbide milling cutters. Three new cutter types, with 2, 3 or 4 teeth, in a diameter range of 2 to 20 mm (from a 6 mm shank diameter with a Weldon shank).

It is the first time that solid carbide milling cutters have been included in the Perform line. The Perform line is designed to be highly economical and suitable for use in a wide range of applications, which is what makes it so advantageous – particularly when machining small and medium quantities. The properties of the new MC232 Perform milling cutters are particularly beneficial for those users whose top priority is the universal applicability of their tools, not tool life – as a long tool life is often not measurable or exploitable when machining small quantities anyway.

Universal applicability is also mirrored in the MC232 Perform milling cutters' technical features. Thanks to their geometry with centre cutting edge and 35° spiral, as well as the WJ30ED grade, the new corner/slot milling cutters are suitable for all common milling operations such as lateral milling, full slotting, pocket milling, ramping and helical plunging. They can be used in industries ranging from mechanical engineering, mould and die, to the automotive and energy industries. The milling cutters are universally applicable in all steel materials, stainless steels and cast iron (ISO P, M and K).
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corner radius milling cutter / solid carbide / face / slot
corner radius milling cutter / solid carbide / face / slot
Proto-max™ ST
WALTER Aktiengesellschaft
Shell mills
Walter Prototyp Proto▪max™ST

Walter Prototyp Proto▪max™ST solid carbide high performance end mill designed specifically for machining steel materials. The tools are available with and without corner radius, with cylindrical DIN6535 HA shank, as well as with DIN 6535 HB weldon face. The tools win over prospective users through their reinforced core and special geometry, which allows full grooves of up to 2 x Dc to be created. This allows metal removal rates to be increased by up to 50% in comparison to standard commercial tools.

Facts and advantages:
- uneven spacing for low spindle stress
- increased tool life thanks to the latest TAZ coating
- back cutting reduces transitions when performing side face machining on the workpiece
- high degree of process reliability thanks to the stable core and optimised microgeometry
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insert milling cutter / roughing / high-performance / high-rigidity
insert milling cutter / roughing / high-performance / high-rigidity
MC319/MC320 Advance & MC320 ConeFit
WALTER Aktiengesellschaft
Shell mills
M5130 shoulder milling cutter – Xtra·tec® XT – performance und reliability extend your perspective.

- Maximum stability for optimum productivity and process reliability
- Lower tool costs and minimal administrative effort thanks to universal usability
- No additional finishing operations thanks to exact 90° angle
- Tiger·tec® cutting tool materials guarantee extremely high cutting data
- Excellent handling thanks to improved accessibility
- High number of teeth and small indexable inserts for maximum efficiency


Xtra·tec® XT M5009 face milling cutter – small indexable inserts, high productivity.

- High level of stability – ideal for small machining allowances and variable conditions
- Maximum feeds, tool life and productivity thanks to small indexable inserts and high number of teeth
- High level of process reliability due to tough double-sided indexable inserts
- Very good handling thanks to easily accessible clamping screw at an angle – prevents typical installation mistakes
- Highly cost-effective thanks to low cutting tool material costs


MC232 Perform solid carbide milling cutter – uniquely cost-efficient and can be used universally with ISO P, M and K materials.

- Can be used universally for diverse milling strategies with various different materials
- High level of process reliability thanks to an internal coolant supply – even in the front piece
- Wide range of applications thanks to tools with reduced neck and corner radii
- High level of cost efficiency for small and medium batch sizes
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shoulder milling cutter / corner radius / solid / coated
shoulder milling cutter / corner radius / solid / coated
Advance MC
WALTER Aktiengesellschaft
Shell mills
Walter Prototyp Advance line

​​​​​​The new standard for tool life.
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- New Advance milling cutter line consisting of six cutter types and 250 dimensions
- Universal application in ISO material groups P, M, K and S
- Long tool life thanks to new high-performance WJ30TF grade
- Ideal balance of hardness and toughness
- Low inventory costs thanks to the wide range of applications
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shoulder milling cutter / face / PCD / for aluminum
shoulder milling cutter / face / PCD / for aluminum
F4722
WALTER Aktiengesellschaft
Shell mills
Walter F4722 PCD shoulder mill

The Walter F4722 PCD shoulder mill for machining non-ferrous metals such as aluminium offers the ultimate in precision, process reliability and cost efficiency. In the smaller diameters, it is offered as a shank tool, while in the larger diameters it comes as a ScrewFit solution or HSK monoblock tool.

- shoulder milling and face milling of non-ferrous metals
- in shank, ScrewFit or monoblock design
- for high feed rates and long tool life
- very cost-effective, especially in series production
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