monobloc tap / for blind holes / through-hole / spiral flute

Walter Prototyp Paradur® Short Chip HT – short chips, absolute process reliability.

- No bird nesting due to short broken chips
- High process reliability even with deeper blind hole threads
- No problems with interference contours due to short chip breakage
- No chip residues in thread after machining
- Blind hole thread up to 3,5 x DN without increase in torque

TC620 Supreme thread milling cutter – less cutting pressure, greater productivity.

- Low cost per thread thanks to fast machining time and high tool life quantity
- High level of process reliability and easy handling due to extremely infrequent radius correction
- Very good results even under unfavourable conditions and difficult materials


TC685 Supreme thread milling cutter – hard machining squared: Core hole and thread in one operation.

- Cost-effective even for small and medium batch sizes
- Can be used in all formable materials
- Reduced torque and longer tool life thanks to new geometry and post-treatment


TC410 Advance thread former – even more powerful thanks to its new geometry.

- Cost-effective even for small and medium batch sizes
- Can be used in all formable materials
- Reduced torque and longer tool life thanks to new geometry and post-treatment

TC620 Supreme thread milling cutter – less cutting pressure, greater productivity.

- Low cost per thread thanks to fast machining time and high tool life quantity
- High level of process reliability and easy handling due to extremely infrequent radius correction
- Very good results even under unfavourable conditions and difficult materials


TC685 Supreme thread milling cutter – hard machining squared: Core hole and thread in one operation.

- Cost-effective even for small and medium batch sizes
- Can be used in all formable materials
- Reduced torque and longer tool life thanks to new geometry and post-treatment


TC410 Advance thread former – even more powerful thanks to its new geometry.

- Cost-effective even for small and medium batch sizes
- Can be used in all formable materials
- Reduced torque and longer tool life thanks to new geometry and post-treatment

TC620 Supreme thread milling cutter – less cutting pressure, greater productivity.

- Low cost per thread thanks to fast machining time and high tool life quantity
- High level of process reliability and easy handling due to extremely infrequent radius correction
- Very good results even under unfavourable conditions and difficult materials

Walter Prototyp Paradur® HT

The Walter Prototyp Paradur® HT high performance tap facilitates the reliable creation of blind hole threads, even in long-chipping, high-strength materials up to 4 x d. The secret lies in the special flute geometry of the Prototyp Paradur® HT, whereby the chips are broken down and transported efficiently out of the thread by the internal coolant supply.

Facts and advantages:
- high degree of process reliability, even when working with deep threads
- typical areas of use: automotive industry (camshafts, crankshafts, connecting rods), large thread dimensions (general mechanical engineering, transmission shafts, casings, etc.)

Walter Prototyp TC142

The specialist for stainless steels with process reliability.

- High-performance tap for blind-hole machining
- Primary application is ISO M materials, and secondary application is ISO P materials
- Wear-resistant material and maximum tool life thanks to HSS-E-PM material with TiAlN coating
- Excellent chip control in stainless steels thanks to vaporised variant
- Excellent thread quality thanks to optimised geometry

Walter Prototyp Paradur® HSC

The Walter Prototyp Paradur® HSC is a new high performance solid carbide tap for creating blind hole threads in steel materials. With its special cutting geometry and reduced helix, this precision tool guarantees excellent chip breaking, even when working with long-chipping materials. With a concentricity of less than 10 µm, this tap guarantees excellent thread quality.

Facts and advantages:
- special micrograin carbide with high wear resistance and cutting edge strength, optimised for toughness
- graded TiCN multi-layer hard material coating for extremely high cutting speeds and a long tool life
- minimum production costs per thread thanks to 3-times higher cutting speeds over HSS taps
- fewer tool changes and optimum machine output resulting from significantly longer tool life
- high degree of process reliability thanks to perfect chip breaking (no bird nesting) in higher strength materials and hard machining operations

Walter Prototyp Paradur® Engine

The Walter Prototyp Paradur® Engine has been specifically designed to meet the requirements of the automotive industry in terms of its cutting edge geometry, range of sizes and structural dimensions. The tap is the ideal tool for machining engine blocks, cylinder heads or gearbox housings.

Facts and advantages:
- high degree of process reliability, even for deeper blind hole threads in long-chipping materials, thanks to secure chip management (short chips)
- chamfer form "E" designed specifically for threads with short run-out
- precise (dimensionally accurate) and clean threads
- reduced production costs per thread due to high cutting speeds and long tool life

Walter Prototyp Prototex® X▪pert N and Paradur® X▪pert N

Walter Prototyp Prototex® X▪pert N and Paradur® X▪pert N – the tandem for aluminium machining.

Facts and advantages:
- Cost-effective thread production for smaller and medium-sized batch sizes
- High level of process reliability due to extremely good chip formation thanks to bare surface
- No miscutting in soft materials

Paradur® X▪pert N:

Variant with reduced number of flutes for the safe manufacture of deep blind hole threads in soft materials.

Walter Prototyp Paradur® Eco CI

The Walter Prototyp Paradur® Eco CI is an HSS-E-PM machine tap for both blind and through hole threads that is suitable for machining cast iron and short-chipping aluminium.

Facts and advantages:
- optimum wear resistance thanks to new type of Xtra•treat™ surface treatment
- short chips due to low rake angle and increased number of flutes
- graded TiCN multilayer coating for high cutting speeds and long tool life
- versions available with axial or radial coolant exit for optimum chip transport when creating deep blind and through hole threads
- reduced production costs per thread due to high cutting speeds and long tool life

TC115/TC216 – Cost efficient and just the right tools for the job.

Facts and advantages:
- Blind hole and through hole machining
- Now with new dimensions: Metric fine (MF) M8 × 1 to M18 × 1.5; ANSI: UNC 6 to UNC ¾
- For universal use
- Reduction in tool inventory
- Tapping tools for achieving customer cost targets
- Economic tap for small and medium batch sizes

TC120, TC121 and TC122: Three new blind hole taps in the Supreme line specially developed for machining steel materials (ISO P).

TC120 tap – high reliability in soft steel and medium-strength steel.

- No more bird nesting due to negative chamfer in the chamfer section
- Prevents total breakage due to chip build-up
- Significantly less fracturing in the guide section thanks to extra long thread section

TC121 tap – maximum performance in steel in medium strength range.

- Reliable due to tightly rolled chips
- Prevents bird nesting (WW60RG)
- Maximum tool life (WY80BD)
- Internal cooling for improved chip evacuation

TC122 tap – maximum tool life in steel with medium to high tensile strength.

- Maximum tool life in strong to high tensile ISO P materials
- Short chips
- No chip residue in the drilled hole thanks to internal cooling

Walter Prototyp Paradur Ti Plus / Prototex® TiNi Plus

High-tensile titanium and nickel alloys are gaining ground in both aerospace technology and medical engineering and can no longer be reliably machined using conventional taps. We offer machine taps for use in machines with synchronised working spindle (rigid tapping) in this case. An innovative AlCrN-based hard coating permits the use of emulsion, even when machining high-strength titanium alloys which have a tendency to stick.

Facts and advantages:
- high degree of process reliability
- outstanding tool life
- excellent thread quality
- ideal for the aircraft and aerospace industry and the medical engineering sector

Walter Prototyp Paradur® X▪pert M und Prototex® X▪pert M

The Walter Prototyp Paradur® X▪pert M and Prototex® X▪pert M were developed specifically for machining stainless steels.

Facts and advantages:
- secure identification thanks to clear labelling on the shank
- high degree of process reliability in long-chipping materials and materials which have a tendency to stick
- excellent chip removal thanks to 40° helix angle
- excellent thread quality, even after long periods of use, due to the enlarged core diameter
- also ideally suitable for use in high-strength ISO-P materials (850-1300 N/mm2)
- comprehensive selection of sizes and tolerances

Walter Prototyp Paradur® and Prototex® Synchrospeed

The Paradur® Synchrospeed and Prototex® Synchrospeed HSS-E taps have been specifically developed for synchronous tapping (rigid tapping) in the most diverse of materials. In addition to structural steel and high-strength steel, these tools can also be used in stainless steel, spheroidal graphite and malleable cast iron, as well as in long-chipping copper and aluminium alloys.

Facts and advantages:
- more precise thread depth without manual programme correction
- universally use in a wide variety of materials
- the greater face clearance and the lower temperature on the cutting edge together facilitate a significantly longer tool life
- the combined use of the Synchrospeed tap and the Protoflex® C synchronous tapping chuck results in optimum service life, process reliability and productivity

Walter Prototyp Paradur® Hard

The Walter Prototyp Paradur® Hard is a tap that has been specifically developed for hard machining. The tool can be used in materials up to max. 63 HRC, as well as in special alloys that are difficult to cut.

Facts and advantages:
- stable cutting edge thanks to negative rake angle
- maximum tool life thanks to increased number of flutes and extra-long chamfer
- special and stable construction

Walter Prototyp Paradur® X▪pert K

Facts and advantages:
- the specialist for cast iron machining.
- Cost-effective thread production for smaller and medium-sized batch sizes
- Extremely robust, reliable tool

Walter Prototyp Paradur® X▪pert P / Prototex® X▪pert P

The Walter Prototyp Paradur® X▪pert P and the Prototex® X▪pert P are genuine expert tools for producing precise threads in steel materials. Thanks to our extensive portfolio, we offer a tool solution for virtually any task with this range.

Facts and advantages:
- secure identification thanks to code letters on the shank
- high degree of process reliability in long-chipping materials
- perfect self-guidance due to 7 full thread pitches
- designed specifically for machining steel
- comprehensive selection of sizes and tolerances

Walter Prototyp Prototex® HSC

Walter Prototyp Prototex® HSC are high-performance solid carbide taps for through hole threads in steel materials. The special micrograin carbide provides extremely good wear resistance, cutting edge strength and maximum toughness. These are highly cost-effective tools for producing excellent threads in modern manufacturing operations.

Facts and advantages:
- excellent concentricity (concentricity less than 10 µm)
- increased number of flutes and TiCN coating for very long tool life
- with cooling grooves on the shank for optimum coolant supply
- minimum production costs per thread thanks to 3-times higher cutting speeds in comparison to HSS-E taps
- fewer tool changes and optimum machine output resulting from significantly longer tool life