Klingspor® A946TZ Cutting Disc

Klingspor A946TZ cut-off wheel: performance and precision on steel and stainless steel

The Klingspor A946TZ cut-off wheel is part of the Kronenflex range: Klingspor's premium line for professionals who do not compromise.

Its zirconia alumina grain cuts faster, generates less heat, and lasts longer than a standard disc.

Compatible with steel and stainless steel, it meets the requirements of boilermakers, pipefitters, and metalworkers who perform series cutting.

At Dagobert Industrie, an official Klingspor distributor, you will find the A946TZ in all sizes for your application.

Presentation of the Klingspor A946TZ cut-off wheel

The Klingspor A946TZ cut-off wheel is a high-performance abrasive disc designed for cutting steel and stainless steel. It belongs to the Kronenflex range, Klingspor's premium line.

Its abrasive grain is based on zirconia alumina. This type of grain is harder and more heat-resistant than conventional aluminum oxide. Result: a significantly longer service life.

The A946TZ is tailored for professionals who cut frequently and on demanding materials. Boilermakers, pipefitters, metalworkers: this is a disc that wears out slower and cuts more cleanly.

Kronenflex technology: what sets the A946TZ apart

The Kronenflex range is based on a reinforced resin bond and a high-density fiberglass net. The disc resists lateral stress and heat buildup during use better.

Another key point: the thin cutting width. The A946TZ removes little material, which limits workpiece heating and reduces burrs. On stainless steel, this is particularly important to avoid heat-affected zones.

Here is what concretely characterizes this disc:

• Zirconia grain: aggressive cutting and long service life
• Reinforced resin bond: stability at high speeds
• Thin profile: less material loss, less heat
• Steel and stainless steel compatible: versatility on site
• oSa / EN 12413 certification: verified safety for professional use

Product	Manufacturer	Abrasive grain	Target materials	Key strength
A946TZ Kronenflex	Klingspor	Zirconia alumina	Steel, stainless steel	Longevity + low heat buildup
A60TZ Inox	Klingspor	Zirconia alumina	Stainless steel mainly	Optimized for stainless steel, iron/sulfur-free
Cubitron II Cut-Off	3M	Ceramic triangular grain	Steel, stainless steel	High cutting speed
Tiger Ceramic	Pferd	Ceramic	Steel, stainless steel, hard materials	Very high durability

Technical specifications of the A946TZ

The Klingspor A946TZ cut-off wheel is designed for cutting steel and stainless steel. Its zirconia corundum composition gives it a longer service life than standard discs.

The 1.6 mm thickness ensures a clean and precise cut. Less material gouged, fewer burrs to clean up.

The fiberglass-reinforced thermoset binder ensures the disc's mechanical integrity under load. It resists lateral forces and the heat generated during cutting.

Main specifications:

• Abrasive material: zirconia corundum (ZA)
• Thickness: 1.6 mm
• Max speed: 80 m/s
• Marking: A 46 TZ Special
• Standard: EN 12413
• Applications: steel, stainless steel, ferrous metals

Product	Abrasive	Thickness	Target materials	Typical usage
Klingspor A946TZ	Zirconia corundum	1.6 mm	Steel, stainless steel	Intensive cutting, long life
Klingspor A60R Inox	White corundum	1.0 mm	Stainless steel, thin steel	Fine cutting, low contamination
Pferd PSF Inox	Semi-friable corundum	1.9 mm	Stainless steel, steel	General workshop use
Norton Quantum3	Ceramic + zirconium	1.6 mm	Steel, stainless steel, alloy steel	High performance, hard steels

The A946TZ stands out for its life-to-cutting-speed ratio. It is a reliable choice for demanding users in production or industrial maintenance.

Compatible materials: steel, stainless steel and demanding applications

The Klingspor A946TZ cut-off wheel is designed to work on a wide range of ferrous and non-ferrous metals. Its zirconia corundum abrasive grain gives it superior aggressiveness and heat resistance compared to standard discs.

It is aimed at professionals who cut unalloyed steel, alloyed steel, and stainless steel on a daily basis. These materials are explicitly mentioned in Klingspor's technical specifications for this model.

Why the A946TZ is suitable for stainless steel work

Stainless steel is a temperamental material: it heats up quickly, hardens under heat, and is easily contaminated. An unsuitable disc leaves ferrous residues that cause corrosion.

The A946TZ meets these challenges thanks to its low iron, sulfur, and chlorine content. These three elements are the primary sources of stainless steel contamination during cutting.

Result: a clean cut, without excessive heating, which preserves the metallurgical structure of the workpiece. This is a decisive criterion in the food, chemical, or pharmaceutical sectors.

Here are the materials on which the A946TZ can be used:

• Unalloyed steel (construction, structural, pipes)
• Alloyed steel (tooling, mechanical)
• Stainless steel (AISI 304, 316, duplex)
• Profiles, angles, round and square bars

Disc	Abrasive grain	Unalloyed steel	Stainless steel	Low stainless contamination
Klingspor A946TZ	Zirconia corundum	✔	✔	✔
Klingspor A24R Supra	Semi-precious corundum	✔	Limited	✘
Pferd PSF Inox	Special corundum	✔	✔	✔
Norton Quantum3	Ceramic / Zirconium	✔	✔	✔

Comparison: A946TZ versus other cut-off wheels on the market

The cut-off wheel market is dense. To help you choose, here is how the Klingspor A946TZ compares to its main competitors.

Product	Manufacturer	Compatible materials	Typical thickness	Key strength
A946TZ	Klingspor	Steel, stainless steel	1.0-1.6 mm	High-performance zirconia grain, low heat buildup
A24 Extra	Klingspor	Steel, cast iron	2.5-3.2 mm	Robustness on heavy cuts
Kronenflex A 60 W	Pferd	Stainless steel	1.0-2.0 mm	Good cut finish
Cubitron II 984F	3M	Steel, stainless steel	1.0-1.6 mm	Ceramic grain, high cutting speed

The A946TZ stands out for its zirconia grain, which is more aggressive than classic alumina. It cuts quickly while limiting the heat transmitted to the workpiece.

Compared to the 3M Cubitron II, the A946TZ offers a very competitive performance-to-life ratio, especially on repetitive stainless steel cuts.

Compared to thick A24 Extra-type discs, it is designed for precision: less material gouged, fewer burrs, less rework.

In summary, the A946TZ is the right choice if you regularly work with steel and stainless steel and are looking for a thin, long-lasting disc without compromising on cut quality.

Usage advice and safety

The Klingspor A946TZ cut-off wheel is designed for cutting steel and stainless steel. A few simple rules allow you to get the most out of it while working safely.

Always verify that the disc's maximum permissible speed is compatible with your angle grinder. Do not exceed the 80 m/s indicated on the disc.

Work at a right angle to the workpiece. Avoid any levering or twisting movement: this is the primary cause of disc breakage.

On stainless steel, slightly reduce contact pressure. A slower, steady cut limits heating and preserves the metal's structure.

• Always wear safety glasses, gloves, and hearing protection.
• Mount the disc with the safety guard in place on the grinder.
• Inspect the disc before each use: cracks or chips = immediate disposal.
• Never use a damaged or deformed disc.
• Let the grinder reach its nominal speed before starting the cut.

After use, store the disc away from humidity and shocks. An improperly stored disc can become fragile even before being used.

At Dagobert Industrie, we recommend never forcing the feed. Let the disc do the work: it's the disc that cuts, not your arm.

FAQ - Klingspor A946TZ cut-off wheel

1. On which materials can the Klingspor A946TZ disc be used?

The Klingspor A946TZ is designed for cutting steel and stainless steel. It is suitable for both common structural steels and austenitic stainless steels.

It is a versatile steel/stainless steel disc, ideal when working on mixed construction sites without wanting to change discs for every material.

2. What is the difference between the A946TZ and a standard disc like the A24R Inox?

The A946TZ uses a special TZ (Topsize) bond that improves service life and cutting speed. A standard disc like the A24R offers a good entry-level, but wears out faster on stainless steel.

Concretely: the A946TZ cuts longer and heats the workpiece less. This is noticeable in repeated series cuts.

3. Is this disc compatible with all angle grinders?

Yes, provided you respect the diameter and bore indicated on the disc. It is mounted on standard angle grinders with an appropriate flange.

Always verify that your machine's maximum speed is lower than or equal to the speed indicated on the disc before starting the cut.

4. Which disc thickness should be chosen for a clean cut on stainless steel?

For stainless steel, thin discs (1.0 to 1.6 mm) are preferred. Less heating, less material gouged, cleaner cut.

A thick disc (2.5 mm and above) remains useful for thick steel, but it generates more heat on stainless steel and can alter corrosion resistance around the cut.

5. Are there special precautions to take during use?

Always use the safety guard provided with the grinder. Wear glasses, gloves, and hearing protection.

Never use a cut-off wheel for side grinding: it is not designed for that and can shatter. This is a frequent mistake on job sites.

6. How do I know when the disc needs to be replaced?

When the disc reaches the minimum diameter engraved on its label, it must be discarded. Continuing to use it below this threshold is dangerous.

Another signal: if the cutting slows down significantly or the disc heats up abnormally, it is worn out. At Dagobert Industrie, we recommend not waiting until this stage to change it.